Grand Canyon National Park Illustrated Plant List

Abies lasiocarpa Subalpine fir

native
Tree

Abronia nana Dwarf sand verbena

native
Perennial herb

Abutilon parvulum Dwarf indian mallow, Little abutilon

• rare native
Perennial herb

Acacia greggii Catclaw, devil's claw

native
Shrub

Acacia greggii var. greggii Catclaw, devil's claw

native
Shrub

Acamptopappus sphaerocephalus Rayless goldenhead

native
Shrub

Acer glabrum Mountain Maple

native
Tree, Shrub

Acer glabrum var. diffusum Mountain maple, Rocky mountain maple

native
Tree, Shrub

Acer glabrum var. neomexicanum Mountain Maple

native
Tree, Shrub

Acer negundo var. californicum Boxelder

native
Tree

Acer saccharinum Silver maple

non-native
Tree

Achillea millefolium var. occidentalis Common yarrow

native
Perennial herb

Achnatherum aridum Mormon needle grass

• rare native
Perennial grass

Achnatherum hymenoides Indian rice grass, Sand grass

native
Perennial grass

Achnatherum lettermanii Letterman's needle grass

native
Perennial grass

Achnatherum nelsonii Mountain needle grass

native
Perennial grass

Achnatherum nelsonii ssp. dorei Mountain needle grass

native
Perennial grass

Achnatherum nelsonii ssp. nelsonii Mountain needle grass

native
Perennial grass

Achnatherum parishii var. depauperatum Parish's needlegrass

native
Perennial grass

Achnatherum scribneri Scribner needlegrass

non-native
Perennial grass

Achnatherum speciosum Desert needle grass

native
Perennial grass

Achnatherum Xbloomeri

native
Perennial grass

Aconitum columbianum Columbian monkshood, Monkshood

native
Perennial herb

Acroptilon repens Russian knapweed

non-native
Perennial herb

Adenophyllum porophylloides San Felipe dogweed, San Felipe dyssodia

native
Perennial herb

Adiantum capillus-veneris Venus hair

native
Fern

Aegilops cylindrica Jointed goat grass, Jointed goatgrass

• invasive non-native
Annual grass

Agave utahensis Clark mountain agave, Utah agave

native
Shrub

Agave utahensis var. kaibabensis Clark mountain agave, Utah agave

native
Shrub

Ageratina herbacea Fragrant snakeroot

• rare native
Perennial herb

Agoseris aurantiaca Orange agoseris, Orange flowered agoseris

native
Perennial herb

Agoseris glauca Pale dandelion, Short beaked agoseris

native
Perennial herb

Agoseris glauca var. dasycephala Mountain agoseris

native
Perennial herb

Agoseris glauca var. laciniata False dandelion

native
Perennial herb

Agoseris heterophylla Annual agoseris, Annual mountain dandelion

native
Annual herb

Agropyron desertorum Crested wheatgrass

non-native
Perennial grass

Agrostis exarata Spike bentgrass, Spike redtop

native
Perennial grass

Agrostis idahoensis Colonial bentgrass, Idaho bentgrass

native
Perennial grass

Agrostis scabra Rough bentgrass, Ticklegrass

native
Perennial grass

Agrostis stolonifera Creeping bentgrass, Redtop

• invasive non-native
Perennial grass

Ailanthus altissima Ailanthus, Tree of heaven

• invasive non-native
Tree

SIMAROUBACEAE

Alhagi maurorum Camel thorn

• invasive non-native
Shrub

Alisma triviale Northern water plantain

native
Perennial herb (aquatic)

ALISMATACEAE

Allenrolfea occidentalis Iodine bush, Iodinebush

native
Shrub

Allionia incarnata Trailing allionia, Trailing four o'clock, Windmills

native
Perennial herb

Allium bisceptrum Twincrest onion

native
Perennial herb (bulb)

ALLIACEAE

Allium bisceptrum var. palmeri Twincrest onion

native
Perennial herb (bulb)

ALLIACEAE

Allium nevadense Nevada onion

• rare native
Perennial herb (bulb)

ALLIACEAE

Alopecurus aequalis Short awned foxtail, Sonoma alopecurus, Water foxtail

native
Perennial grass

Alopecurus geniculatus Marsh foxtail, Water foxtail

native
Perennial grass

Aloysia wrightii Oreganillo, Vera dulce, Wright lippia

• rare native
Shrub

Alyssum minus Alyssum

non-native
Annual herb

Amaranthus albus Pigweed amaranth, Tumbleweed

non-native
Annual herb

Amaranthus fimbriatus Fringed amaranth

native
Annual herb

Amaranthus hybridus Slender pigweed, Slim amaranth

non-native
Annual herb

Amaranthus palmeri Carelessweed, Palmer's amaranth

native
Annual herb

Amaranthus powellii Powell's amaranth

native
Annual herb

Amaranthus retroflexus Green amaranth, Red root pigweed, Red rooted amaranth

non-native
Annual herb

Ambrosia acanthicarpa Annual bursage, Annual burweed

native
Annual herb

Ambrosia artemisiifolia Annual ragweed, Common ragweed, Low ragweed

non-native
Annual herb

Ambrosia confertiflora Weak leaved burweed, Weakleaf burr ragweed

native
Perennial herb

Ambrosia dumosa Burro weed, Burrobush, White bursage

native
Shrub

Ambrosia eriocentra Woolly bur sage, Wooly bursage

native
Shrub

Ambrosia psilostachya Ragweed, Western ragweed

native
Perennial herb

Amelanchier pumila Dwarf service berry, Glabrous serviceberry

native
Shrub

Amelanchier utahensis Pale leaved serviceberry, Service berry, Utah service berry

native
Shrub

Amorpha fruticosa Desert indigobush, Western false indigo

native
Shrub

Amphipappus fremontii ssp. spinosus Spiny fremont's chaffbush

native
Shrub

Amsinckia menziesii var. intermedia Common fiddleneck

native
Annual herb

Amsinckia tessellata Bristly fiddleneck, Checker fiddleneck, Devil's lettuce

native
Annual herb

Amsonia tomentosa Gray amsonia, Woolly amsonia, Woolly bluestar

native
Perennial herb

Amsonia tomentosa var. stenophylla Gray amsonia, Woolly amsonia, Woolly bluestar

native
Perennial herb

Amsonia tomentosa var. tomentosa Gray amsonia, Woolly amsonia, Woolly bluestar

native
Perennial herb

Anaphalis margaritacea Pearly everlasting

native
Perennial herb

Andropogon glomeratus Bushy bluestem

native
Perennial grass

Andropogon hallii Sand bluestem

non-native
Perennial grass

Androsace occidentalis Western rockjasmine

native
Annual herb

Androsace septentrionalis Pygmyflower rockjasmine

native
Annual, Perennial herb

Androsace septentrionalis ssp. glandulosa Pygmyflower rockjasmine

native
Annual, Perennial herb

Androsace septentrionalis ssp. glandulosa

Androsace septentrionalis ssp. puberulenta Pygmyflower rockjasmine

native
Annual, Perennial herb

Androsace septentrionalis ssp. puberulenta

Androstephium breviflorum Pink funnel lily, Small flowered androstephium

• rare native
Perennial herb (bulb)

THEMIDACEAE

Anemone tuberosa Tuber anemone

native
Perennial herb

Anemopsis californica Yerba mansa

native
Perennial herb

SAURURACEAE

Antennaria marginata White margined pussytoes, Whitemargin pussytoes

• rare native
Perennial herb

Antennaria parvifolia Small leaf pussytoes

native
Perennial herb

Antennaria rosea ssp. arida Rose pussytoes, Rosy everlasting, Rosy pussytoes

native
Perennial herb

Anthemis cotula Dog fennel, Mayweed, dog fennel, Stinking chamomile

• invasive non-native
Annual herb

Antheropeas lanosum White easter bonnets

native
Annual herb

Antheropeas wallacei Wallace eriophyllum, Wallace's woolly daisy

native
Annual herb

Apium graveolens Smallage, Garden celery

non-native
Annual, Biennial herb

Apocynum androsaemifolium Bitter dogbane, Spreading dogbane

native
Perennial herb

Apocynum cannabinum Indian hemp, Indianhemp dogbane, Hemp Dogbane

native
Perennial herb

Apocynum Xfloribundum Bitter dogbane, Spreading dogbane

native
Perennial herb

Arabis drummondii Drummond's rockcress

native
Perennial herb

Arabis glabra Tower rockcress

native
Perennial herb

Arabis perennans Perennial rockcress

native
Perennial herb

Arabis pulchra Beautiful rockcress

native
Perennial herb

Arabis pulchra var. pallens Beautiful rockcress

native
Perennial herb

Arceuthobium abietinum Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe

native
Perennial herb (parasitic)

Arceuthobium divaricatum Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe

native
Perennial herb (parasitic)

Arceuthobium douglasii Douglas dwarf mistletoe, Douglas's dwarf mistletoe

native
Perennial herb (parasitic)

Arctomecon californica California bearpoppy

non-native
Perennial herb

Arctostaphylos patula Green leaf manzanita, Greenleaf manzanita

native
Shrub

Arctostaphylos pungens Mexican manzanita, Pointleaf manzanita

native
Tree, Shrub

Arenaria lanuginosa Spreading sandwort

native
Perennial herb

Arenaria lanuginosa ssp. saxosa Rock sandwort

• rare native
Perennial herb

Arenaria macradenia Mojave sandwort

native
Perennial herb

Arenaria macradenia ssp. ferrisiae

native
Perennial herb

Argemone corymbosa Leafy prickly poppy, Mohave prickly poppy, Mojave pricklypoppy

native
Perennial herb

Argemone corymbosa ssp. arenicola Leafy prickly poppy, Mohave prickly poppy, Mojave pricklypoppy

native
Perennial herb

Argemone munita Chicalote, Prickly poppy

native
Annual, Perennial herb

Argemone munita ssp. argentea Chicalote, Prickly poppy

native
Annual, Perennial herb

Argemone munita ssp. rotundata Chicalote, Prickly poppy

native
Annual, Perennial herb

Argyrochosma jonesii Jones' false cloak fern

native
Fern

Argyrochosma limitanea Southwestern false cloak fern

native
Fern (rhizomatous)

Argyrochosma limitanea ssp. limitanea Southwestern false cloak fern

• rare native
Fern (rhizomatous)

Argythamnia neomexicana Common ditaxis, New mexico ditaxis

native
Annual, Perennial herb

Aristida adscensionis Six weeks three awn, Sixweeks threeawn

native
Annual grass

Aristida purpurea Purple three awn, Purple threeawn

native
Perennial grass

Aristida purpurea var. longiseta Red three awn

native
Perennial grass

Aristida purpurea var. nealleyi Nealley three awn, Reverchon three awn

native
Perennial grass

Aristida purpurea var. parishii Parish three awn, Parish's threeawn

native
Perennial grass

Aristida ternipes var. gentilis Spidergrass

native
Perennial grass

Arnica chamissonis Chamisso arnica

native
Perennial herb

Arnica chamissonis ssp. foliosa Chamisso arnica

native
Perennial herb

Arnica cordifolia Heart leaved arnica, Heartleaf arnica

native
Perennial herb

Artemisia bigelovii Bigelow sagebrush, Flat sagebrush

native
Shrub

Artemisia campestris Field sagewort

native
Perennial herb

Artemisia campestris ssp. borealis var. scouleriana Boreal sage

native
Perennial herb

Artemisia campestris ssp. borealis var. scouleriana

Artemisia dracunculus Herbaceous sagewort, Pinon wormwood, Tarragon

native
Perennial herb

Artemisia filifolia Sand sagebrush

non-native
Shrub

Artemisia ludoviciana Mugwort, Silver wormwood

native
Perennial herb

Artemisia ludoviciana var. albula Silver wormwood, White mugwort, White sagebrush

native
Perennial herb

Artemisia nova Black sagebrush

native
Shrub

Artemisia tridentata Big sagebrush, Common sagebrush

native
Shrub

Arundo donax Giant reed

• invasive non-native
Perennial grass

Asclepias asperula Spider milkweed

native
Perennial herb

Asclepias asperula ssp. capricornu Spider milkweed

native
Perennial herb

Asclepias latifolia Broadleaf milkweed

native
Shrub

Asclepias speciosa Showy milkweed

native
Perennial herb

Asclepias tuberosa Butterfly milkweed

non-native
Shrub

Astragalus argophyllus var. panguicensis Silverleaf milkvetch

native
Perennial herb

Astragalus argophyllus var. panguicensis

Astragalus calycosus Torrey's milkvetch

native
Perennial herb

Astragalus calycosus var. scaposus Torrey's milkvetch

native
Perennial herb

Astragalus kentrophyta Kentrophyta milkvetch, Spiny milk vetch

native
Perennial herb

Astragalus kentrophyta var. elatus Spiny leaved milk vetch, Spiny leaved milkvetch

• rare native
Perennial herb

Astragalus lentiginosus Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. australis Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. diphysus Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. oropedii Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. palans Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. yuccanus Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

Astragalus newberryi Newberry's milkvetch

native
Perennial herb

Astragalus nuttallianus Nuttall locoweed, Small flowered milk vetch, Smallflowered milkvetch

native
Annual herb

Astragalus nuttallianus var. austrinus Smallflowered milkvetch, Southern small flowered milk vetch

native
Annual herb

Astragalus oophorus Bladder milk vetch, Egg milkvetch

native
Perennial herb

Astragalus oophorus var. caulescens Bladder milk vetch, Egg milkvetch

native
Perennial herb

Astragalus preussii Preuss' milkvetch, Preuss's milk vetch

native
Perennial herb

Astragalus preussii var. preussii Desert milkvetch, Preuss's milk vetch

• rare native
Perennial herb

Astragalus sabulonum Gravel milk vetch, Gravel milkvetch

• rare native
Annual herb

Astragalus tephrodes Ashen milkvetch

native
Perennial herb

Astrolepis cochisensis ssp. cochisensis Scaly cloak fern

• rare native
Fern

Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus

native
Annual herb

Atrichoseris platyphylla Gravel ghost, Gravelghost, Parachute flower

native
Annual herb

Atriplex argentea Silver saltweed, Silverscale saltbush

native
Annual herb

Atriplex canescens Fourwing saltbush, Hoary saltbush, Shadscale

native
Shrub

Atriplex confertifolia Shadscale, Spiny saltbush

native
Shrub

Atriplex hymenelytra Desert holly, Desertholly saltbush

native
Shrub

Atriplex obovata Mound saltbush

non-native
Annual herb

Atriplex rosea Redscale, Tumbling oracle, Tumbling saltweed

non-native
Annual herb

Avena fatua Wild oat, Wildoat

• invasive non-native
Annual grass

Ayenia compacta California ayenia, Desert ayenia

• rare native
Perennial herb, Shrub

Baccharis brachyphylla Short leaved baccharis, Short leaved baccharis, Shortleaf baccharis

native
Shrub

Baccharis emoryi Willow baccharis

native
Shrub

Baccharis salicifolia Mule fat., seep willow, Mule's fat, Mulefat

native
Shrub

Baccharis sarothroides Desertbroom baccharis

native
Shrub

Baccharis sergiloides Desert baccharis

native
Shrub

Bahia dissecta Ragged leaf bahia

native
Perennial herb

Baileya multiradiata Desert marigold

native
Perennial herb

Baileya pleniradiata Woolly desert marigold, Woolly marigold, Wooly marigold

native
Annual, Perennial herb

Bassia hyssopifolia Five horn bassia, Fivehorn smotherweed

• invasive non-native
Annual herb

Bebbia juncea var. aspera Rough sweetbush

native
Shrub

Beckmannia syzigachne American sloughgrass, Slough grass

native
Annual grass

Bernardia incana Western bernardia

native
Shrub

Berula erecta Cut leaved water parsnip, Cutleaf water parsnip, Cutleaf waterparsnip

native
Perennial herb

Betula occidentalis Water birch

native
Tree, Shrub

BETULACEAE

Bidens frondosa Devil's beggartick, Sticktight

native
Annual herb

Boehmeria cylindrica Smallspike false nettle

non-native
Perennial herb

Boerhavia coccinea Red boerhaavia, Scarlet spiderling

native
Perennial herb

Boerhavia intermedia Fivewing spiderling

native
Annual herb

Boerhavia spicata Creeping spiderling

non-native
Annual herb

Boerhavia wrightii Largebract spiderling, Wright's boerhavia, Wright's spiderling

native
Annual herb

Bothriochloa barbinodis Beard grass, Cane beardgrass, Cane bluestem

native
Perennial grass

Bothriochloa laguroides ssp. torreyana Silver beardgrass

non-native
Perennial grass

Bothriochloa saccharoides Silver beardgrass

non-native
Perennial grass

Bouteloua aristidoides Needle grama

native
Annual grass

Bouteloua barbata Sixweeks grama

native
Annual grass

Bouteloua curtipendula Side oats grama, Sideoats grama

native
Perennial grass

Bouteloua eriopoda Black grama

• rare native
Perennial grass

Bouteloua gracilis Blue grama

native
Perennial grass

Bouteloua trifida Red grama

• rare native
Perennial grass

Bowlesia incana Hoary bowlesia

native
Annual herb

Brassica tournefortii Saharan mustard

• invasive non-native
Annual herb

Brickellia atractyloides Spear leaved brickellia, Spearleaf brickellbush

native
Shrub (stem succulent)

Brickellia californica Brickell bush, California brickellbush, California brickellia

native
Shrub

Brickellia coulteri Coulter's brickellbush

non-native
Perennial herb

Brickellia grandiflora Large flowered brickelbush, Large flowered brickellia, Tasselflower brickellbush

native
Perennial herb

Brickellia longifolia Longleaf brickellbush, Willow leaved brickellia, Willowleaf brickellia

native
Shrub

Brickellia longifolia var. multiflora Longleaf brickellbush

native
Shrub

Brickellia microphylla var. scabra Rough brickellbush

native
Shrub

Brickellia oblongifolia Mojave brickellbush

native
Perennial herb

Brickellia oblongifolia var. linifolia Narrow leaved brickellia, Narrowleaf brickellbush, Pinon brickellia

native
Perennial herb

Bromus anomalus Nodding brome

native
Perennial grass

Bromus arizonicus Arizona brome

native
Annual grass

Bromus arvensis Field brome, Soft brome

non-native
Annual grass

Bromus berterianus Chilean chess

non-native
Annual grass

Bromus carinatus California brome

native
Perennial grass

Bromus catharticus Rescue grass, Rescuegrass

non-native
Annual, Perennial grass

Bromus ciliatus Fringed bromegrass

native
Perennial grass

Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass

• invasive non-native
Annual grass

Bromus frondosus Weeping brome

non-native
Perennial grass

Bromus hordeaceus ssp. hordeaceus Soft brome, Soft chess

• invasive non-native
Annual grass

Bromus inermis Smooth brome

non-native
Perennial grass

Bromus japonicus Downy sheathed cheat, Hairy chess, Japanese brome

• invasive non-native
Annual grass

Bromus madritensis Foxtail chess, foxtail brome, Madrid brome, Spanish brome

non-native
Annual grass

Bromus marginatus Mountain brome

native
Perennial grass

Bromus rubens Red brome

• invasive non-native
Annual grass

Bromus secalinus Chess brome, Rye brome

non-native
Annual grass

Bromus sterilis Poverty brome, Sterile brome

non-native
Annual grass

Bromus tectorum Cheatgrass, downy brome, Downy brome grass, Downy chess

• invasive non-native
Annual grass

Bupleurum lancifolium Lance leaf bupleurum, Lanceleaf thorow wax

non-native
Annual herb

Calamagrostis stricta ssp. stricta Slimstem reedgrass

native
Perennial grass (rhizomatous)

Calibrachoa parviflora Wild petunia

native
Annual herb

Callitriche palustris Vernal water-starwort

native
Annual herb

Calochortus ambiguus Doubting mariposa lily

non-native
Perennial herb

LILIACEAE

Calochortus flexuosus Winding mariposa lily

native
Perennial herb

LILIACEAE

Caltha leptosepala White marsh marigold

native
Perennial herb

Calycoseris parryi Yellow tackstem

native
Annual herb

Calypso bulbosa Fairy slipper, Fairyslipper orchid

native
Perennial herb

Calypso bulbosa var. americana Fairy slipper, Fairyslipper orchid

native
Perennial herb

Camelina microcarpa False flax, Little podded falseflax, Littleseed falseflax

non-native
Annual herb

Camissonia boothii ssp. boothii Booth's evening-primrose

• rare native
Annual herb

Camissonia brevipes Yellow cups

native
Annual, Perennial herb

Camissonia chamaenerioides Long fruit suncup

native
Annual herb

Camissonia multijuga Walker's sun cup

native
Annual, Perennial herb

Camissonia pallida Pale yellow sun cup

native
Annual herb

Camissonia pterosperma Wing fruit sun cup

native

Camissonia refracta Narrow leaved primrose

native
Annual herb

$Camissonia refracta$
© 2020 Steve Matson

Camissonia walkeri Walker's suncup

native
Annual, Perennial herb

Camissonia walkeri ssp. walkeri Walker's suncup

native
Annual, Perennial herb

Cannabis sativa Herb, Marijuana

non-native
Annual herb

CANNABACEAE

Capsella bursa-pastoris Shepherd's purse

non-native
Annual herb

Cardamine parviflora Sand bittercress

non-native
Perennial herb

Cardaria draba Whitetop

• invasive non-native
Perennial herb

Carduus nutans Musk thistle, Nodding plumeless thistle

• invasive non-native
Perennial herb

Carex aquatilis Water sedge

native
Perennial grasslike herb

Carex athrostachya Slender beak sedge, Slender leaved sedge

native
Perennial grasslike herb

Carex aurea Golden fruited sedge, Golden sedge

native
Perennial grasslike herb

Carex bolanderi Bolander's sedge

native
Perennial grasslike herb

Carex haydeniana Cloud sedge

native
Perennial grasslike herb

Carex hystericina Bottlebrush sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex microptera Small wing sedge

native
Perennial grasslike herb

Carex nebrascensis Nebraska sedge

native
Perennial grasslike herb

Carex occidentalis Western sedge

• rare native
Perennial grasslike herb

Carex pellita Woolly sedge

native
Perennial grasslike herb

Carex petasata Liddon sedge, Liddon's sedge

• rare native
Perennial grasslike herb

Carex praegracilis Clustered field sedge, Field sedge

native
Perennial grasslike herb

Carex rossii Ross sedge, Ross' sedge

native
Perennial grasslike herb

Carex scoparia Pointed broom sedge

native
Perennial grasslike herb

Carex senta Rough sedge, Swamp carex, Swamp sedge

native
Perennial grasslike herb

Carex subfusca Brown sedge, Rusty slender sedge

native
Perennial grasslike herb

Carex vallicola Valley sedge

• rare native
Perennial grasslike herb

Carex vulpinoidea Fox sedge

native
Perennial grasslike herb

Castilleja applegatei ssp. martinii Martin's paintbrush, Wavyleaf indian paintbrush

native
Perennial herb

Castilleja linariifolia Desert paintbursh, Wyoming paintbrush

native
Perennial herb

Castilleja miniata Great red paintbrush, Scarlet paintbrush

native
Perennial herb

Catalpa speciosa Northern catalpa

non-native
Tree

BIGNONIACEAE

Caulanthus cooperi Cooper caulanthus, Cooper's jewel flower, Cooper's wild cabbage

native
Annual herb

Caulanthus crassicaulis Thick stemmed caulanthus, Thickstem wild cabbage

native
Perennial herb

Ceanothus greggii Desert ceanothus

native
Shrub

RHAMNACEAE

Celtis laevigata var. reticulata Net leaf hackberry, Western hackberry

native
Tree

CANNABACEAE

Cenchrus spinifex Coast sandbur

• invasive non-native
Annual grass

Centaurea biebersteinii Spotted knapweed

• invasive non-native
Perennial herb

Centaurea diffusa Diffuse knapweed, White knapweed

• invasive non-native
Perennial herb

Centaurea solstitialis Barnaby's thistle, Yellow star thistle

• invasive non-native
Annual herb

Centaurium calycosum Small Tree-Mallow

Centaurium exaltatum Spring-loving Centaury

native
Annual herb

Centrostegia thurberi Red triangles, Thurber spiny herb, Thurber's spineflower

native
Annual herb

Cerastium arvense Field chickweed, Meadow chickweed

native
Perennial herb

Ceratocephala testiculata Tubercled crowfoot

non-native
Annual herb

Cercis orbiculata Redbud, Western redbud

native
Tree, Shrub

Cercocarpus intricatus Little leaved mountain mahogany

native
Shrub

Cercocarpus ledifolius Curl leaf mountain mahogany, Desert mountain mahogany

native
Tree, Shrub

Cercocarpus montanus Birch leaf mountain mahogany, Mountain mahogany

native
Tree, Shrub

Chaenactis carphoclinia var. carphoclinia Pebble pincushion

native
Annual herb

Chaenactis carphoclinia var. carphoclinia

Chaenactis douglasii Chaenactis, Hoary chaenactis

native
Annual, Perennial herb

Chaenactis fremontii Fremont pincushion, Pincushion flower

native
Annual herb

Chaenactis macrantha Large flowered chaenactis, Mohave pincushion

native
Annual herb

Chaenactis stevioides Desert pincushion, Esteve pincushion

native
Annual herb

Chaenactis xantiana Fleshcolor pincushion, Xantus pincushion, Xantus' chaenactis

native
Annual herb

Chaetopappa ericoides Heath leaved chaetopappa, Rose heath

native
Perennial herb

Chamaebatiaria millefolium Desertsweet, Fern bush

native
Shrub

Chamaesaracha coronopus Five eye chamaesaracha, Greenleaf five eyes

native
Perennial herb

Chamaesyce arizonica Arizona spurge

• rare native
Perennial herb

Chamaesyce fendleri Fendler's sandmat

native
Perennial herb

Chamaesyce melanadenia Red-gland spurge

native
Perennial herb

Chamaesyce polycarpa Smallseed sandmat

native
Perennial herb

Chamaesyce revoluta Revolute spurge

• rare native
Annual herb

Chamaesyce serpyllifolia Thyme-leafed spurge

native
Annual herb

Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge

native
Annual, Perennial herb

Chamaesyce serpyllifolia ssp. serpyllifolia

Chamerion angustifolium ssp. circumvagum Fireweed

native
Perennial herb

Chamerion angustifolium ssp. circumvagum

Cheilanthes feei Slender lip fern

native
Fern

Cheilanthes parryi Parry's lip fern

native
Fern

Cheilanthes wootonii Wooton's lace fern

• rare native
Perennial herb

Chenopodium album Lamb's quarters, Lambs quarters, White goosefoot

non-native
Annual herb

Chenopodium ambrosioides Mexican tea

non-native
Annual, Perennial herb

Chenopodium ambrosioides var. ambrosioides Mexican tea

non-native
Annual, Perennial herb

Chenopodium ambrosioides var. ambrosioides

Chenopodium berlandieri Berlandier's goosefoot, Pit seed goosefoot

native
Annual herb

Chenopodium berlandieri var. zschackii Berlandier's goosefoot, Pit seed goosefoot

native
Annual herb

Chenopodium capitatum Blite goosefoot, Strawberry blite

non-native
Annual herb

Chenopodium desiccatum Aridland goosefoot, Dry goosefoot

native
Annual herb

Chenopodium fremontii Fremont's goosefoot

native
Annual herb

Chenopodium hians Gaping goosefoot, Hians goosefoot

native
Annual herb

Chenopodium incanum Mealy goosefoot

native
Perennial herb

Chenopodium incanum var. elatum Mealy goosefoot

native
Perennial herb

Chenopodium leptophyllum Narrowleaf goosefoot, Thin leaved goosefoot

native
Annual herb

Chenopodium murale Nettle leaf goosefoot, Sowbane

non-native
Annual herb

Chenopodium pratericola Desert goosefoot, Meadow goosefoot

native
Annual herb

Chenopodium rubrum Red goosefoot

native
Annual herb

Chenopodium salinum Oak leaved goosefoot

native
Annual herb

Chilopsis linearis Desert willow

native
Shrub

BIGNONIACEAE

Chimaphila umbellata Blake's prince's pine, Pipsissewa, Prince's Pine

native
Perennial herb

Chimaphila umbellata ssp. acuta Blake's prince's pine, Pipsissewa, Prince's Pine

native
Perennial herb

Chloracantha spinosa Spiny chloracantha

native
Perennial herb

Chloris virgata Feather finger grass, Feather fingergrass

non-native
Annual grass

Chondrilla juncea Hogbite, Skeleton weed

• invasive non-native
Perennial herb

Chorispora tenella Crossflower

• invasive non-native
Annual herb

Chorizanthe brevicornu Brittle spine flower, Brittle spineflower

native
Annual herb

Chorizanthe rigida Devil's spineflower, Rigid spiny herb

native
Annual herb

Chrysothamnus depressus Long flowered rabbitbrush, Longflower rabbitbrush

native
Shrub

Chrysothamnus greenei Greene's rabbitbrush

• rare native
Shrub

Chrysothamnus viscidiflorus Green rabbitbrush, Stickyleaf rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. axillaris Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. axillaris

Chrysothamnus viscidiflorus ssp. lanceolatus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. lanceolatus

Cichorium intybus Chicory

non-native
Perennial herb

Cirsium arizonicum Arizona thistle

native
Perennial herb

Cirsium arizonicum var. nidulum Arizona thistle

native
Perennial herb

Cirsium arvense Canada thistle

• invasive non-native
Perennial herb

Cirsium neomexicanum Desert thistle, New mexico thistle

native
Perennial herb

Cirsium ochrocentrum Beaumont thistle, Yellow spined thistle

• invasive non-native
Perennial herb

Cirsium scariosum Dwarf thistle, Elk thistle

native
Perennial herb

Cirsium undulatum Wavy leaved thistle, Wavyleaf thistle

non-native
Perennial herb

Cirsium vulgare Bull thistle

• invasive non-native
Perennial herb

Cladium californicum California sawgrass, Saw grass

• rare native
Perennial grasslike herb

Claytonia perfoliata Miners lettuce, Miner's lettuce, Rooreh (Ohlone)

native
Annual herb

Clematis ligusticifolia Creek clematis, Western white clematis, Yerba de chiva

native
Perennial herb, Vine

Cleome lutea Yellow bee plant

native
Annual herb

Cleome serrulata Rocky mountain bee plant

non-native
Annual herb

Coleogyne ramosissima Black brush, Blackbrush

native
Shrub

Collinsia parviflora Few flowered blue eyed mary, Small flowered blue eyed mary, Blue-eyed Mary

native
Annual herb

Collomia grandiflora Grand collomia, Large flowered collomia, Mountain collomia

native
Annual herb

Collomia linearis Narrow leaved collomia, Slenderleaf collomia, Tiny trumpet

native
Annual herb

Comandra umbellata ssp. pallida Bastard toad flax, Bastard toadflax, California bastard toadflax

native
Perennial herb (parasitic)

COMANDRACEAE

Conium maculatum Poison hemlock

• invasive non-native
Perennial herb

Convolvulus arvensis Field bindweed, Orchard morningglory

• invasive non-native
Perennial herb, Vine

Convolvulus equitans Small flowered morning glory

• rare native
Annual herb

Conyza canadensis Canada horseweed

native
Annual herb

Conyza canadensis var. pusilla Canada horseweed

native
Annual herb

Corallorrhiza maculata Spotted coralroot, Summer coral root, Summer coralroot

native
Perennial herb

Cordylanthus parviflorus Purple bird's beak

• rare native
Annual herb (hemiparasitic)

Cornus sericea American dogwood, Creek dogwood, Redosier dogwood

native
Shrub

CORNACEAE

Cornus sericea ssp. sericea American dogwood, Creek dogwood, Red osier dogwood

native
Shrub

CORNACEAE

Cortaderia selloana Uruguayan pampas grass

• invasive non-native
Perennial grass

Corydalis aurea Golden corydalis, Scrambled eggs

native
Annual, Perennial herb

Corydalis aurea ssp. aurea Golden corydalis, Scrambled eggs

native
Annual, Perennial herb

Crepis capillaris Hawksbeard, Smooth hawk's beard, Smooth hawksbeard

non-native
Annual, Perennial herb

Crepis intermedia Intermediate hawksbeard, Limestone hawksbeard

native
Perennial herb

Crepis occidentalis Largeflower hawksbeard, Western hawk's beard, Western hawksbeard

native
Perennial herb

Crepis runcinata ssp. glauca Fiddleleaf hawksbeard, Meadow hawksbeard

• rare native
Perennial herb

Crossosoma bigelovii Bigelow crossosoma, Bigelow's ragged rock flower, Ragged rockflower

native
Shrub

CROSSOSOMATACEAE

Crossosoma bigelovii var. bigelovii Bigelow crossosoma, Bigelow's ragged rock flower, Ragged rockflower

native
Shrub

CROSSOSOMATACEAE

Cryptantha angustifolia Narrow-leaved johnstonella

native
Annual herb

Cryptantha barbigera Bearded cryptantha, Bearded forget me not

native
Annual herb

Cryptantha cinerea var. cinerea James' cryptantha

native
Perennial herb

Cryptantha cinerea var. jamesii James' cryptantha

native
Perennial herb

Cryptantha circumscissa

native
Annual herb

Cryptantha confertiflora Yellow-flowered oreocarya

native
Perennial herb

Cryptantha decipiens Granel forget me not, Gravel cryptantha, Gravelbar cryptantha

native
Annual herb

Cryptantha fendleri Sand dune cryptantha

• rare native
Annual herb

Cryptantha flavoculata Yellow-eyed oreocarya

native
Perennial herb

Cryptantha gracilis Narrowstem cryptantha, Slender cryptantha, Slensder forget me not

native
Annual herb

Cryptantha holoptera winged cryptantha

• rare native
Annual herb

Cryptantha maritima Guadalupe cryptantha, Guadalupe island cryptantha, White haired forget me not

native
Annual herb

Cryptantha micrantha Purple root cryptantha, Purple rooted forget me not, Redroot cryptantha

native
Annual herb

Cryptantha nevadensis Nevada cryptantha, Nevada forget me not

native
Annual herb

Cryptantha pterocarya Winged nut forget me not, Wingnut cryptantha

native
Annual herb

Cryptantha pterocarya var. cycloptera Tucson cryptantha

native
Annual herb

Cryptantha racemosa Shrubby johnstonella

native
Annual herb

Cryptantha recurvata Curve nut cryptantha, Curvenut cryptantha

native
Annual herb

Cryptantha utahensis Scented cryptantha, Scented forget me not

native
Annual herb

Cryptantha virginensis Virgin River oreocarya

native
Perennial herb

Cucurbita foetidissima Calabazilla, Missouri gourd, Mock orange

native
Perennial herb, Vine

CUCURBITACEAE

Cucurbita palmata Coyote gourd, Coyote melon

native
Annual, Perennial herb

CUCURBITACEAE

Cuscuta californica California dodder, Chaparral dodder

native
Annual herb, Vine (parasitic)

Cuscuta pentagona var. pentagona Five angled dodder, Fiveangled dodder, Western field dodder

native
Annual herb, Vine (parasitic)

Cymopterus multinervatus Arizona cymopterus, Purplenerve springparsley

• rare native
Perennial herb

Cymopterus purpurascens Purple cymopterus, Widewing springparsley

native
Perennial herb

Cynodon dactylon Bermuda grass, Bermudagrass

• invasive non-native
Perennial grass

Cynoglossum officinale Gypsyflower, Hound's tongue, Purple houndstongue

• invasive non-native
Perennial herb

Cyperus erythrorhizos Red rooted cyperus, Redroot flatsedge

native
Annual grasslike herb

Cyperus esculentus Chufa flatsedge, Nut grass, Yellow nutgrass

native
Perennial grasslike herb

Cystopteris fragilis Bladder fern, Brittle bladder fern, Brittle fern

native
Fern

CYSTOPTERIDACEAE

Dactylis glomerata Orchard grass, Orchardgrass

• invasive non-native
Perennial grass

Dalea searlsiae Searls' prairie clover

native
Perennial herb

Danthonia intermedia Timber oatgrass

native
Perennial grass

Dasyochloa pulchella Low woollygrass

native
Perennial grass

Datura wrightii Jimsonweed, Sacred thorn apple, Toluaca

native
Perennial herb

Daucus pusillus American wild carrot, Rattlesnake weed

native
Annual herb

Delphinium nuttallianum Low larkspur, Meadow larkspur, Dwarf, Meadow, Slim or Sonne's Larkspur

native
Perennial herb

Delphinium parishii Desert larkspur, Parish's larkspur

native
Perennial herb

Delphinium scaposum Tall mountain larkspur

• rare native
Perennial herb

Deschampsia caespitosa California hairgrass, Tufted hair grass, Tufted hairgrass

native
Perennial grass

Deschampsia elongata Hairgrass, Slender hairgrass

native
Perennial grass

Descurainia californica Sierra tansy mustard, Sierra tansymustard

native
Perennial herb

Descurainia incana ssp. incisa Mountain tansy mustard

native
Annual, Biennial herb

Descurainia obtusa Blunt tansymustard

native
Perennial herb

Descurainia obtusa ssp. obtusa Blunt tansymustard

native
Perennial herb

Descurainia pinnata Western tansy mustard, Western tansymustard, Yellow tansy mustard

native
Annual herb

Descurainia pinnata ssp. glabra Smooth western tansy mustard, Western tansymustard, Yellow tansy mustard

native
Annual herb

Descurainia pinnata ssp. halictorum Alkali western tansy mustard, Western tansymustard

native
Annual herb

Descurainia sophia Flix weed, Herb sophia

• invasive non-native
Annual herb

Dichanthelium acuminatum var. fasciculatum Pacific panic grass

native
Perennial grass

Dichanthelium acuminatum var. fasciculatum

Dichelostemma capitatum ssp. pauciflorum Few flowered blue dicks

native

THEMIDACEAE

Dichelostemma capitatum ssp. pauciflorum

Dicoria canescens Desert dicoria, Desert twinbugs

native
Annual herb

Dicoria canescens ssp. brandegeei Desert dicoria, Desert twinbugs

native
Annual herb

Digitaria californica Arizona cottontop

native
Perennial grass

Digitaria sanguinalis Hairy crabgrass

non-native
Annual grass

Diplachne uninervia Mexican sprangletop

native
Annual grass

Distichlis spicata Inland saltgrass, Salt grass, Saltgrass

native
Perennial grass

Dodecatheon pulchellum Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

Draba cuneifolia Wedge leaved draba, Wedgeleaf draba

native
Annual herb

Draba cuneifolia var. integrifolia Wedge leaved draba, Wedgeleaf draba

native
Annual herb

Draba reptans Carolina draba

non-native
Annual herb

Dryopteris filix-mas Male fern

• rare native
Fern (rhizomatous)

DRYOPTERIDACEAE

Dudleya pulverulenta ssp. arizonica Arizona chalk dudleya

native
Perennial herb

CRASSULACEAE

Echinocactus polycephalus Cottontop cactus

native
Shrub (stem succulent)

Echinocactus polycephalus var. polycephalus Many-headed barrel cactus, Cotton top cactus, Cottontop cactus

native
Shrub (stem succulent)

Echinocactus polycephalus var. polycephalus

Echinocactus polycephalus var. xeranthemoides Cottontop cactus

native
Shrub (stem succulent)

Echinocactus polycephalus var. xeranthemoides

Echinocereus coccineus var. coccineus Scarlet hedgehog cactus

native
Shrub (stem succulent)

Echinocereus engelmannii Calico cactus, Engelmann's hedgehog cactus

native
Shrub (stem succulent)

Echinocereus triglochidiatus Mojave kingcup cactus

native
Shrub (stem succulent)

Echinocereus triglochidiatus var. mojavensis Mojave kingcup cactus

native
Shrub (stem succulent)

Echinocereus triglochidiatus var. mojavensis

Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass

non-native
Annual grass

Elaeagnus angustifolia Oleaster, Russian olive

• invasive non-native
Tree, Shrub

ELAEAGNACEAE

Elatine brachysperma Short seed waterwort, Shortseed waterwort

native
Annual, Perennial herb

ELATINACEAE

Elatine rubella Southwestern waterwort

native
Annual herb

ELATINACEAE

Eleocharis acicularis Needle spike rush, Needle spikerush

native
Perennial grasslike herb

Eleocharis engelmannii Engelmann's spikerush

native
Annual grasslike herb

Eleocharis ovata Ovate spikerush

native
Perennial grasslike herb

Eleocharis palustris Common spikerush

native
Perennial grasslike herb

Eleocharis parishii Parish's spike rush, Parish's spikerush

native
Perennial grasslike herb

Eleocharis radicans Creeping spikerush, Rooted spikerush

native
Perennial grasslike herb

Eleocharis rostellata Beaked spikerush, Walking sedge

native
Perennial grasslike herb

Elodea canadensis Canadian waterweed, Common water weed, Elodea

native
Perennial herb

HYDROCHARITACEAE

Elymus canadensis Canada wild rye, Canada wildrye

non-native
Perennial grass

Elymus elymoides Bottlebrush squirreltail, Squirrel tail grass, Squirreltail

native
Perennial grass

Elymus elymoides ssp. brevifolius Squirrel tail grass

native
Perennial grass

Elymus elymoides ssp. elymoides Squirrel tail grass

native
Perennial grass

Elymus glaucus Blue wildrye

native
Perennial grass

Elymus lanceolatus ssp. lanceolatus Northern wheatgrass, Streambank wheatgrass, Thick spiked wheatgrass

native
Perennial grass

Elymus multisetus Big squirreltail grass

native
Perennial grass

Elymus repens Quack grass

non-native
Perennial grass

Elymus trachycaulus Slender wheatgrass

native
Perennial grass

Elymus trachycaulus ssp. subsecundus Slender wheatgrass

native
Perennial grass

Elymus trachycaulus ssp. trachycaulus Slender wheatgrass

native
Perennial grass

Encelia farinosa Brittlebush, Goldenhills, Incienso

native
Shrub

Encelia frutescens Bush encelia, Button brittlebush, Button encelia

native
Shrub

Encelia frutescens var. resinosa Bush encelia, Button brittlebush, Button encelia

native
Shrub

Encelia virginensis Encelia, Virgin river brittlebush, Virgin river encelia

native
Shrub

Enceliopsis nudicaulis Naked stemmed daisy, Nakedstem sunray

native
Perennial herb

Enneapogon desvauxii Nine awned pappus grass, Nineawn pappusgrass

• rare native
Perennial grass

Ephedra fasciculata Mormon tea, Rough jointfir

native
Shrub

Ephedra nevadensis Nevada ephedra, Nevada jointfir, Nevada mormon tea

native
Shrub

Ephedra torreyana Torrey's jointfir

• rare native
Shrub

Ephedra viridis Green ephedra, Mormon tea, Mountain ephedra

native
Shrub

Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb

native
Annual herb

Epilobium ciliatum ssp. ciliatum Fringed willowherb, Northern willow herb, Willow herb

native
Perennial herb

Epilobium halleanum Hall's willowherb

native
Perennial herb

Epilobium saximontanum Glandular willowherb, Rocky mountain willowherb

native
Perennial herb

Epipactis gigantea Giant helleborine, Chatterbox orchid, Stream orchid

native
Perennial herb

Equisetum arvense Common horsetail rush, Common horsetail, field horsetail, Field horsetail

native
Fern

Equisetum hyemale Scouringrush horsetail

native
Fern

Equisetum laevigatum Horsetail, Smooth horsetail, Smooth scouring rush

native
Fern

Equisetum Xferrissii Ferris' horsetail

native
Fern

Eragrostis cilianensis Stinkgrass

non-native
Annual grass

Eragrostis curvula Weeping lovegrass

non-native
Perennial grass

Eragrostis mexicana Mexican lovegrass

native
Annual grass

Eragrostis pectinacea Tufted lovegrass

native
Annual grass

Eragrostis pectinacea var. pectinacea Tufted lovegrass

native
Annual grass

Eriastrum diffusum Miniature wool star, Miniature eriastrum, Miniature woollystar

native
Annual herb

Eriastrum eremicum Desert woollystar

native
Annual herb

Ericameria laricifolia Turpentine brush, Turpentine bush

native
Shrub

Ericameria nauseosa Rubber rabbitbrush

native
Shrub

Ericameria nauseosa ssp. consimilis var. juncea Rubber rabbitbrush

native
Shrub

Ericameria nauseosa ssp. consimilis var. juncea

Ericameria nauseosa ssp. consimilis var. leiosperma Common rabbitbrush

native
Shrub

Ericameria nauseosa ssp. consimilis var. leiosperma

Ericameria nauseosa ssp. nauseosa var. hololeuca Common rabbitbrush

native
Shrub

Ericameria nauseosa ssp. nauseosa var. hololeuca

Ericameria paniculata Mojave rabbitbrush, Black-banded rabbitbrush

native
Perennial herb

Ericameria parryi var. nevadensis Parry's rabbitbrush

native
Shrub

Erigeron concinnus Navajo fleabane

native
Shrub (stem succulent)

Erigeron concinnus var. subglaber Navajo fleabane

native
Shrub (stem succulent)

Erigeron divergens Diffuse daisy, Spreading fleabane

native
Biennial, Perennial herb

Erigeron eatonii Eaton's daisy

native
Perennial herb

Erigeron flagellaris Trailing fleabane

native
Perennial herb

Erigeron formosissimus Beautiful fleabane

non-native
Perennial herb

Erigeron lobatus Diffuse daisy, Spreading fleabane

native
Biennial, Perennial herb

Erigeron utahensis Utah fleabane

• rare native
Perennial herb

Erigeron utahensis var. sparsifolius Utah fleabane

• rare native
Perennial herb

Erigeron utahensis var. utahensis Utah fleabane

• rare native
Perennial herb

Eriogonum brachypodum Parry's buckwheat

native
Annual herb

Eriogonum cernuum Nodding buckwheat

native
Annual herb

Eriogonum corymbosum Crispleaf buckwheat

non-native
Perennial herb

Eriogonum deflexum Flat topped buckwheat, Flatcrown buckwheat, Skeleton weed

native
Annual herb

Eriogonum deflexum var. deflexum Flat topped buckwheat, Flatcrown buckwheat

native
Annual herb

Eriogonum ericifolium var. pulchrum Small Tree-Mallow

Eriogonum fasciculatum var. polifolium California buckwheat, Eastern mojave buckwheat

native
Shrub

Eriogonum heermannii var. subracemosum Heerman buckwheat, Heermann's buckwheat

native
Shrub

Eriogonum heermannii var. subspinosum Heerman buckwheat, Heermann's buckwheat

native
Shrub

Eriogonum heermannii var. sulcatum Heermann's buckwheat

native
Shrub

Eriogonum inflatum Desert trumpet

native
Perennial herb

Eriogonum inflatum var. inflatum Reveal's buckwheat

• rare native
Annual herb

Eriogonum maculatum Angle stermed buckwheat, Spotted buckwheat

native
Annual herb

Eriogonum microthecum Slender buckwheat

native
Perennial herb

Eriogonum microthecum var. laxiflorum Great basin wild buckwheat

native
Perennial herb

Eriogonum microthecum var. simpsonii Simpson's wild buckwheat

native
Perennial herb

Eriogonum ovalifolium Cushion buckwheat, Oval leaved eriogonum

native
Perennial herb

Eriogonum ovalifolium var. ovalifolium Cushion buckwheat

native
Perennial herb

Eriogonum palmerianum Palmer's buckwheat

native
Annual herb

Eriogonum plumatella Flat topped buckwheat, Yucca buckwheat

native
Shrub

Eriogonum thomasii Thomas eriogonum, Thomas' buckwheat

native
Annual herb

Eriogonum trichopes Little desert buckwheat, Little deserttrumpet, Little trumpet

native
Annual herb

Eriogonum umbellatum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. cognatum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. majus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. subaridum Desert sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum wrightii Bastardsage, Wright's buckwheat

native
Perennial herb, Shrub

Erioneuron pilosum Hairy erioneuron, Hairy woollygrass

• rare native
Perennial grass

Erodium cicutarium Coastal heron's bill, Red stemmed filaree, Redstem stork's bill

• invasive non-native
Annual herb

GERANIACEAE

Erodium texanum Desert heron's bill, Texas filaree, Texas stork's bill

native
Annual herb

GERANIACEAE

Erysimum capitatum var. capitatum Sanddune wallflower

native
Perennial herb

Erysimum capitatum var. purshii Pursh's wallflower

native
Perennial herb

Erysimum repandum Spreading wallflower, Treaclemustard

non-native
Annual herb

Eschscholzia californica California poppy

native
Annual, Perennial herb

Eschscholzia californica ssp. mexicana Desert california poppy

native
Annual, Perennial herb

Eschscholzia glyptosperma Desert gold poppy, Desert golden poppy, Desert poppy

native
Annual herb

Eschscholzia minutiflora Coville s poppy, Pygmy poppy

native
Annual herb

Escobaria vivipara var. arizonica Spinystar

native
Shrub (stem succulent)

Escobaria vivipara var. vivipara Spinystar

native
Shrub (stem succulent)

Eucnide urens Desert bush nettle, Desert rocknettle, Desert stingbush

native
Shrub

Eucrypta chrysanthemifolia var. bipinnatifida Common eucrypta, Spotted hideseed, Torrey eucrypta

native
Annual herb

Eucrypta chrysanthemifolia var. bipinnatifida

Eucrypta micrantha Dainty desert hideseed, Desert eucrypta, Small flowered eucrypta

native
Annual herb

Euphorbia eriantha Beetle spurge

native
Annual herb

Euphorbia incisa Mojave spurge

native
Perennial herb

Euphorbia palmeri Woodland spurge

native
Perennial herb

Euthamia occidentalis Western flat topped goldenrod, Western goldenrod, Western goldentop

native
Perennial herb

Fallugia paradoxa Apache plume

native
Shrub

Fendlerella utahensis Utah fendlerbush, Yerba desierto

• rare native
Shrub

HYDRANGEACEAE

Ferocactus cylindraceus var. cylindraceus Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

Ferocactus cylindraceus var. cylindraceus

Ferocactus cylindraceus var. eastwoodiae Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

Ferocactus cylindraceus var. eastwoodiae

Ferocactus cylindraceus var. lecontei Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

Festuca brachyphylla ssp. coloradensis Short leaved fescue

native
Perennial grass

Festuca idahoensis Blue bunchgrass, Blue fescue, Idaho fescue

native
Perennial grass

Festuca rubra Red fescue

native
Perennial grass

Festuca sororia Ravine fescue

native
Perennial grass

Festuca trachyphylla Hard fescue, Rough leaved fescue

non-native
Perennial grass

Ficus carica Common fig, Edible fig

• invasive non-native
Tree

MORACEAE

Filago californica California cottonrose

native
Annual herb

Fimbristylis thermalis Hot springs fimbristylis, Hot springs fimbry

• rare native
Perennial grasslike herb (rhizomatous)

Forestiera pubescens Desert olive, Stretchberry

native
Shrub

Fouquieria splendens Jacob's staff, Ocotillo

native
Shrub

FOUQUIERIACEAE

Fragaria virginiana Mountain strawberry, Scarlet strawberry, Virginia strawberry

native
Perennial herb

Fragaria virginiana ssp. glauca Mountain strawberry, Scarlet strawberry, Virginia strawberry

native
Perennial herb

Frasera albomarginata Desert frasera

native
Perennial herb

Frasera speciosa Monument plant

native
Perennial herb

Fraxinus anomala Dwarf ash, Single leaf ash, Single leaved ash

native
Tree, Shrub

Fraxinus velutina Arizona ash, Velvet ash

native
Tree

Fritillaria atropurpurea Mountain fritillary, Purple fritillary, Spotted fritillary

native
Perennial herb

LILIACEAE

Funastrum cynanchoides Fringed twinevine

native
Perennial herb

Funastrum cynanchoides ssp. cynanchoides Fringed twinevine

native
Perennial herb

Funastrum cynanchoides ssp. cynanchoides

Funastrum cynanchoides ssp. heterophyllum Climbing milkweed

native
Perennial herb

Funastrum cynanchoides ssp. heterophyllum

Funastrum hirtellum Hairy milkweed

native
Perennial herb, Vine

Gaillardia pinnatifida Red dome blanketflower

non-native
Annual herb

Galium aparine Cleavers, Common bedstraw, Goose grass

native
Annual herb

Galium bifolium Low mountain bedstraw, Twinleaf bedstraw

native
Annual herb

Galium munzii Munz's bedstraw

• rare native
Perennial herb

Galium proliferum Desert bedstraw, Limestone bedstraw

• rare native
Annual herb

Galium stellatum Starry bedstraw

native
Shrub

Galium stellatum ssp. eremicum Starry bedstraw

native
Shrub

Galium trifidum Three petaled bedstraw, Threepetal bedstraw, Trifid bedstraw

native
Perennial herb

Galium trifidum ssp. subbiflorum Threepetal bedstraw

native
Perennial herb

Galium triflorum Fragrant bedstraw, Sweet bedstraw, Sweet scented bedstraw

native
Annual herb

Galium watsonii Kellogg's bedstraw, Many flowered bedstraw, Shrubby bedstraw

native
Perennial herb

Galium wrightii Wright's bedstraw, Wright's galium

• rare native
Perennial herb

Garrya flavescens Ashy silk tassel, Ashy silktassel

native
Shrub

GARRYACEAE

Gaura coccinea Wild honeysuckle, linda tarde

native
Perennial herb

Gaura mollis Lizard-tail, velvet weed

non-native
Perennial herb

Gayophytum diffusum Diffuse gayophytum, Gayophytum, Spreading groundsmoke

native
Annual herb

Gayophytum diffusum ssp. parviflorum Diffuse gayophytum, Small flowered groundsmoke, Spreading groundsmoke

native
Annual herb

Gayophytum ramosissimum Pinyon gayophytum, Pinyon groundsmoke

native
Annual herb

Gentiana affinis Pleated gentian

native
Perennial herb

Gentianella amarella Autumn dwarf gentian

native
Annual herb

Gentianella amarella ssp. acuta Autumn dwarf gentian

native
Annual herb

Gentianella amarella ssp. heterosepala Autumn dwarf gentian

native
Annual herb

Geranium richardsonii Richardson's geranium

native
Perennial herb

GERANIACEAE

Geum aleppicum Aleppo avens, Yellow avens

• rare native
Perennial herb

Gilia filiformis Yellow gilia

native
Annual herb

Gilia flavocincta Lesser yellowthroat gilia

non-native
Annual herb

Gilia hutchinsifolia Desert pale gilia

native
Annual herb

Gilia latifolia Broad leaf gilia

native
Annual herb

Gilia leptomeria Sand aliciella

native
Annual herb

Gilia ophthalmoides Eyed gilia

native
Annual herb

Gilia scopulorum Rock gilia

native
Annual herb

Gilia sinuata Cinder gilia, Rosy gilia

native
Annual herb

Gilia stellata Star gilia

native
Annual herb

Glandularia gooddingii Southwestern mock vervain

native
Perennial herb

Glossopetalon spinescens var. aridum Spiny greasebush

native
Shrub

CROSSOSOMATACEAE

Glyceria borealis Northern mannagrass, Small floating mannagrass

native
Perennial grass

Glyceria striata Fowl mannagrass

native
Perennial grass

Glycyrrhiza lepidota American licorice, Lichorice, Wild licorice

native
Perennial herb

Gnaphalium palustre Lowland cudweed, Western marsh cudweed

native
Annual herb

Goodyera oblongifolia Rattlesnake plantain, Western rattlesnake plantain

native
Perennial herb

Grayia spinosa Hop sage, Spiny hopsage

native
Shrub

Grindelia nuda var. aphanactis Curlytop gumweed

native
Perennial herb

Grindelia squarrosa Curlycup gumweed

non-native
Perennial herb

Grindelia squarrosa var. serrulata Curlycup gumweed, Great plains resinweed

non-native
Perennial herb

Guillenia lasiophylla California mustard

native
Annual herb

Gutierrezia microcephala Matchweed, Sticky snakeweed, Threadleaf snakeweed

native
Shrub (stem succulent)

Gutierrezia sarothrae Broom snakeweed, Common snakeweed, Matchweed

native
Shrub

Hackelia floribunda Many flowered stickseed, Manyflower stickseed

native
Perennial herb

Hedeoma drummondii Drummond's false pennyroyal

• rare native
Shrub (stem succulent)

Hedeoma nana Dwarf false pennyroyal

native
Perennial herb

Hedeoma nana ssp. californica California false pennyroyal

• rare native
Perennial herb

Hedeoma nana ssp. nana Dwarf false pennyroyal

native
Perennial herb

Hedera helix English ivy

• invasive non-native
Vine, Shrub

ARALIACEAE

Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower

native
Annual herb

Helianthus ciliaris Texas blueweed

• invasive non-native
Perennial herb

Helianthus petiolaris Prairie sunflower

non-native
Perennial herb

Heliomeris multiflora Showy goldeneye

native
Perennial herb

Heliomeris multiflora var. multiflora Showy goldeneye

native
Perennial herb

Heliomeris multiflora var. nevadensis Golden eye, Nevada goldeneye

native
Perennial herb

Heliotropium convolvulaceum Phlox heliotrope

native
Annual herb

HELIOTROPIACEAE

Heliotropium curassavicum Chinese parsley, Heliotrope, Salt heliotrope

native
Perennial herb

HELIOTROPIACEAE

Hesperochiron pumilus Dwarf hesperochiron

native
Perennial herb

Hesperostipa comata Needle-and-thread

native
Perennial grass

Hesperostipa comata ssp. comata Needle & thread grass

native
Perennial grass

Heteropogon contortus Tanglehead

native
Perennial grass

Heterotheca villosa Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

Heterotheca villosa var. foliosa Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

Heterotheca villosa var. minor Hairy false goldenaster

native
Perennial herb

Heterotheca villosa var. villosa Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

Heuchera parvifolia Littleleaf alumroot

native
Perennial herb (rhizomatous)

Heuchera parvifolia var. arizonica Littleleaf alumroot

native
Perennial herb (rhizomatous)

Heuchera parvifolia var. flavescens Littleleaf alumroot

native
Perennial herb (rhizomatous)

Heuchera rubescens Pink alumroot

native
Perennial herb

Heuchera rubescens var. versicolor Pink alumroot, San diego county alumroot

• rare native
Perennial herb (rhizomatous)

Hibiscus denudatus Paleface, Rock Hibiscus

native
Perennial herb

Hieracium aurantiacum Orange flowered hawkweed, Orange hawkweed

non-native
Perennial herb

Holodiscus dumosus Cream bush, Ocean spray, Oceanspray

native
Shrub

Hordeum brachyantherum Meadow barley

native
Perennial grass

Hordeum jubatum Fox tail barley, Foxtail barley, Squirreltail barley

native
Perennial grass

Hordeum marinum Seaside barley

• invasive non-native
Annual grass

Hordeum marinum ssp. gussonianum Seaside barley

• invasive non-native
Annual grass

Hordeum murinum Farmer's foxtail, Foxtail barley, Mouse barley

• invasive non-native
Annual grass

Hordeum murinum ssp. glaucum Blue foxtail, Smooth barley

non-native
Annual grass

Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley

non-native
Annual grass

Hutchinsia procumbens Prostrate hutchinsia

non-native

Hymenoclea salsola Cheesebrush, Burrobrush

native
Shrub

Hymenopappus filifolius Columbia cutleaf, Fineleaf hymenopappus

native
Perennial herb

Hymenopappus filifolius var. lugens Columbia cutleaf, Idaho hymenopappus

native
Perennial herb

Hymenopappus filifolius var. pauciflorus Columbia cutleaf, Fineleaf hymenopappus

native
Perennial herb

Hymenopappus filifolius var. pauciflorus

Hymenothrix loomisii Loomis' thimblehead

non-native
Annual, Perennial herb

Hymenoxys cooperi Cooper goldflower, Cooper's goldflower, Cooper's rubberweed

native
Perennial herb

Hypericum anagalloides Creeping st. john's wort, Tinker's penny

native
Annual, Perennial herb

HYPERICACEAE

Hypericum scouleri Scouler's St John's wort

native
Perennial herb

HYPERICACEAE

Imperata brevifolia California satintail

• rare native
Perennial grass

Ipomopsis arizonica Arizona ipomopsis, Arizona scarlet gilia

native
Perennial herb

Ipomopsis polycladon Branching gilia, Manybranched ipomopsis

native
Annual herb

Ipomopsis tenuituba Narrow tube ipomopsis, Slendertube skyrocket

native
Shrub (stem succulent)

Iris missouriensis Rocky mountain iris, Western blue flag

native
Perennial herb

IRIDACEAE

Isocoma acradenia Alkali goldenbush, Desert isocoma

native
Shrub

Isocoma acradenia var. acradenia Alkali goldenbush

native
Shrub

Iva acerosa Copperwort

• rare native
Perennial herb

Ivesia arizonica Rock whitefeather

native
Perennial herb

Ivesia arizonica var. arizonica Arizona whitefeather, Yellow ivesia

• rare native
Perennial herb

Juncus acuminatus Sharp fruited rush, Taper tip rush, Tapertip rush

native
Perennial grasslike herb

Juncus acutus Spiny rush

native
Perennial grasslike herb (rhizomatous)

Juncus acutus ssp. leopoldii Leopold's rush, Southwestern spiny rush, Wire grass

• rare native
Perennial grasslike herb (rhizomatous)

Juncus articulatus Jointed rush, Jointleaf rush

native
Perennial grasslike herb

Juncus balticus Baltic rush, Wire rush

native
Perennial grasslike herb

Juncus balticus var. montanus Baltic rush

native
Perennial grasslike herb

Juncus bufonius Common toad rush, Toad rush

native
Annual grasslike herb

Juncus confusus Colorado rush

native
Perennial grasslike herb

Juncus dudleyi Dudley's rush

• rare native
Perennial grasslike herb

Juncus effusus var. brunneus Coast or bog rush

native
Perennial grasslike herb

Juncus ensifolius Sword leaved rush, Swordleaf rush, Three stamened rush

native
Perennial grasslike herb

Juncus longistylis Long styled rush, Longstyle rush

native
Perennial grasslike herb

Juncus mertensianus Merten's rush, Mertens' rush

native
Perennial grasslike herb

Juncus mexicanus Mexican rush

native
Perennial grasslike herb

Juncus nevadensis Sierra rush

native
Perennial grasslike herb

Juncus saximontanus Rocky mountain rush

native
Perennial grasslike herb

Juncus tenuis Poverty rush, Slender rush

native
Perennial grasslike herb

Juncus tenuis var. tenuis Poverty rush, Slender rush

native
Perennial grasslike herb

Juncus torreyi Torrey's rush

native
Perennial grasslike herb

Juncus xiphioides Iris leaved rush, Irisleaf rush

native
Perennial grasslike herb

Juniperus communis Common juniper, Dwarf juniper

native
Shrub

Juniperus communis var. depressa Common juniper

native
Shrub

Juniperus monosperma Utah juniper

native
Tree, Shrub

Juniperus osteosperma Utah juniper

native
Tree, Shrub

Juniperus scopulorum Rocky mountain juniper

non-native
Tree

Kallstroemia californica California caltrop, California kallstroemia

native
Annual herb

Kallstroemia parviflora Few flowered caltrop, Warty caltrop

• rare native
Annual herb

Kelloggia galioides Milk kelloggia

native
Perennial herb

Kochia scoparia Common red sage, Mexican fireweed, Summer cypress

• invasive non-native
Annual herb

Koeleria macrantha June grass, Prairie junegrass

native
Perennial grass

Krameria erecta Little leaved ratany, Littleleaf ratany, Pima rhatany

native
Shrub

KRAMERIACEAE

Krameria grayi White rhatany

native
Shrub

KRAMERIACEAE

Krascheninnikovia lanata Winter fat, Winterfat

native
Shrub

Lactuca ludoviciana Biannual lettuce, Louisiana wild lettuce

non-native
Perennial herb

Lactuca serriola Prickly lettuce, Prickly wild lettuce

• invasive non-native
Annual herb

Langloisia setosissima Bristly langloisia, Great basin langloisia, Lilac sunbonnet

native
Annual herb

Lappula occidentalis var. cupulata Cupped redowski's stickseed

native
Annual herb

Lappula occidentalis var. occidentalis Redowski's stickseed

native
Annual herb

Larrea tridentata South american creosote bush

native
Shrub

Larrea tridentata var. tridentata South american creosote bush

native
Shrub

Lathyrus graminifolius Grassleaf pea

non-native
Perennial herb

Lathyrus lanszwertii var. leucanthus Nevada pea

native
Perennial herb

Layia glandulosa White layia, White tidy tips, Whitedaisy tidytips

native
Annual herb

Lemna minuta Least duckweed

native
Perennial herb

ARACEAE

Lepidium densiflorum Common pepper grass, Common pepperweed

native
Annual herb

Lepidium fremontii Desert alysum, Desert pepper grass, Desert pepperweed

native
Perennial herb

Lepidium lasiocarpum var. lasiocarpum Shaggyfruit pepperweed

native
Annual herb

Lepidium latifolium Broad leaved pepper grass, Broadleaved pepperweed, Perennial pepperweed

• invasive non-native
Perennial herb

Lepidium montanum Mountain pepper grass, Mountain pepperweed

native
Perennial herb

Lepidium montanum var. glabrum Mountain pepper grass, Mountain pepperweed

native
Perennial herb

Lepidium montanum var. jonesii Mountain pepper grass, Mountain pepperweed

native
Perennial herb

Lepidium perfoliatum Clasping pepperweed, Klamath pepper grass, Shield cress

non-native
Annual herb

Lepidium virginicum Virginia pepperweed, Wild pepper grass

native
Annual herb

Lepidium virginicum var. medium Robinson's pepper grass

native
Annual herb

Lepidium virginicum var. pubescens Robinson's pepper grass

native
Annual herb

Leptochloa fusca ssp. fascicularis Bearded sprangletop

native
Annual grass

Leptochloa fusca ssp. uninervia Mexican sprangletop

native
Annual grass

Leptodactylon pungens Granite prickly phlox

native
Shrub

Lesquerella tenella Little bladderpod

native
Annual herb

Lesquerella wardii Limestone bladderpod

native
Perennial herb

Leucanthemum vulgare Oxe eye daisy, Oxeye daisy

• invasive non-native
Perennial herb

Lewisia pygmaea Alpine lewisia, Pigmy bitter root

native
Perennial herb

Lewisia rediviva Bitter root

native
Perennial herb

Leymus salinus ssp. salinus Small Tree-Mallow

Leymus triticoides Beardless wild rye

native
Perennial grass

Limosella aquatica Northern mudwort, Water mudwort

native
Annual herb (aquatic)

SCROPHULARIACEAE

Linanthus aureus Golden linanthus

• rare native
Annual herb

Linanthus bigelovii Bigelow's linanthus

native
Annual herb

Linanthus demissus Desert linanthus, Desertsnow

native
Annual herb

Linaria dalmatica Dalmatian toadflax

non-native
Perennial herb

Linum lewisii Blue flax, Lewis' flax, Prairie flax

native
Perennial herb

Linum lewisii var. lewisii Lewis' flax, Prairie flax

native
Perennial herb

Linum neomexicanum New mexico yellow flax

non-native
Perennial herb

Linum puberulum Hairy flax, Plains flax

• rare native
Annual herb

Lithophragma tenellum Slender woodland star, Slender woodlandstar, Woodland star

native
Perennial herb

Lithospermum incisum Narrowleaf gromwell, Narrowleaf stoneseed

• rare native
Perennial herb

Lobelia cardinalis Cardinalflower

native
Perennial herb

CAMPANULACEAE

Loeseliastrum schottii Schott gilia, Schott's calico

native
Annual herb

Lolium arundinaceum Alta fescue, Reed fescue, Tall fescue

• invasive non-native
Perennial grass

Lolium perenne Italian rye grass

• invasive non-native
Annual, Perennial grass

Lolium perenne ssp. multiflorum Italian rye grass

• invasive non-native
Annual, Perennial grass

Lolium pratense Meadow fescue

non-native
Perennial grass

Lomatium bicolor var. leptocarpum Slender fruited lomatium, Wasatch desertparsley

native
Perennial herb

Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium

• rare native
Perennial herb

Lomatium mohavense Mohave wild parsely, Mojave desertparsley, Mojave lomatium

native
Perennial herb

Lomatium nevadense Nevada biscuitroot, Nevada lomatium

native
Perennial herb

Lomatium nevadense var. parishii Parish's biscuitroot, Parish's lomatium

native
Perennial herb

Lotus corniculatus Bird's foot trefoil, Birdfoot deervetch, Broadleaf birdsfoot trefoil

• invasive non-native
Perennial herb

Lotus wrightii Canyon birdsfoot trefoil

native
Perennial herb

Lupinus argenteus Silvery lupine

native
Perennial herb

Lupinus arizonicus Arizona lupine

native
Annual herb

Lupinus arizonicus ssp. arizonicus Arizona lupine

native
Annual herb

Lupinus brevicaulis Sand lupine, Short stemmed blue lupine, Shortstem lupine

native
Annual herb

Lupinus palmeri Palmer's silver lupine

native
Perennial herb

Lupinus pusillus Rusty lupine

native
Annual herb

Lycium andersonii Anderson thornbush, Anderson's desert thorn, Water jacket

native
Shrub

Lycium andersonii var. deserticola Anderson thornbush, Anderson's desert thorn, Water jacket

native
Shrub

Lycium exsertum Arizona desert-thorn

• rare native
Shrub

Lycium fremontii Fremont box thorn, Fremont's desert thorn

native
Shrub

Lycium pallidum Pale desert thorn

native
Shrub

Lycium torreyi Torrey's box thorn

• rare native
Shrub

Lycurus phleoides Wolftail

• rare native
Perennial grass

Lythrum californicum California loosestrife, Common loosestrife

native
Perennial herb

LYTHRACEAE

Machaeranthera canescens Hoary aster

native
Perennial herb

Machaeranthera canescens ssp. canescens var. incana Hoary aster

native
Perennial herb

Machaeranthera canescens ssp. canescens var. incana

Machaeranthera carnosa var. intricata Shrubby alkali aster

native
Shrub

Machaeranthera gracilis Annual bristleweed

• rare native
Annual herb

Machaeranthera pinnatifida ssp. gooddingii var. gooddingii Small Tree-Mallow

Machaeranthera pinnatifida ssp. gooddingii var. paradoxa Small Tree-Mallow

Machaeranthera tanacetifolia Tanseyleaf tansyaster, Tansy leaved aster

native
Annual herb

Madia glomerata Mountain tarweed

native
Annual herb

Mahonia aquifolium Mountain grape, Mountaingrape, Oregon grape

native
Shrub

Mahonia fremontii Fremont barberry

• rare native
Shrub

Mahonia haematocarpa Red fruited mahonia

native
Shrub

Mahonia repens Creeping oregon grape, Dwarf mahonia

native
Shrub

Maianthemum racemosum ssp. amplexicaule Feathery false lily of the valley

native
Perennial herb

Maianthemum racemosum ssp. racemosum Feathery false lily of the valley

native
Perennial herb

Maianthemum stellatum Starry false lily of the valley

native
Perennial herb

Malacothrix clevelandii Cleveland's dandelion, Cleveland's desertdandelion, Cleveland's malacothrix

native
Annual herb

Malacothrix glabrata Desert dandelion, Smooth desertdandelion

native
Annual herb

Malacothrix sonchoides Sow thistle malacothrix, Sowthistle desertdandelion, Yellow saucers

native
Annual herb

Malacothrix torreyi Torrey's desertdandelion, Torrey's malacothrix

native
Annual herb

Malcolmia africana African mustard

non-native
Annual herb

Malus pumila Paradise apple

non-native
Tree

Malus sylvestris Paradise apple

non-native
Tree

Malva neglecta Common mallow, Dwarf mallow

non-native
Annual, Perennial herb

Malva parviflora Cheeseweed mallow

non-native
Annual herb

Malvella leprosa Alkali mallow

native
Perennial herb

Mammillaria grahamii var. grahamii Graham's fishhook cactus

• rare native
Shrub (stem succulent)

Mammillaria tetrancistra Common fish hook cactus, Common fishhook cactus, Fishhook cactus

native
Shrub (stem succulent)

Marrubium vulgare White horehound

• invasive non-native
Perennial herb

Matelea parvifolia Spearleaf

• rare native
Perennial herb

Maurandella antirrhiniflora Roving sailor

• rare native
Perennial herb

Medicago lupulina Black medick

non-native
Annual, Perennial herb

Medicago sativa Alfalfa

non-native
Perennial herb

Melilotus alba Yellow sweetclover

• invasive non-native
Annual, Biennial herb

Melilotus indicus Annual yellow sweetclover, Sourclover

non-native
Annual herb

Melilotus officinalis Yellow sweetclover

non-native
Annual, Biennial herb

Menodora scabra Rough desert olive, Rough menodora

native
Shrub

Mentha arvensis American wild mint, Field mint, Marsh mint

native
Perennial herb

Mentzelia affinis Yellow blazing star, Yellow comet, Yellowcomet

native
Annual herb

Mentzelia albicaulis Small flowered blazing star, White stemmed blazing star, White stemmed stickleaf

native
Annual herb

Mentzelia involucrata Bracted blazing star, Sand blazing star, Whitebract blazingstar

native
Annual herb

Mentzelia multiflora Adonis blazingstar

native
Perennial herb

Mentzelia oreophila Argus blazingstar, Mountain loving blazing star

native
Perennial herb

Mentzelia tricuspis Spinyhair blazingstar, Three pointed blazing star

• rare native
Annual herb

Mertensia franciscana Franciscan bluebells

native
Perennial herb

Mimulus bigelovii Bigelow mimulus

native
Annual herb

Mimulus cardinalis Cardinal monkey flower

native
Perennial herb

Mimulus guttatus Seep monkey flower, Yellow monkey flower

native
Annual, Perennial herb (rhizomatous)

Mimulus primuloides Primrose monkeyflower

native
Perennial herb

Mimulus rubellus Red stemmed himulus

native
Annual herb

Mimulus spissus Bigelow's monkeyflower

native
Annual herb

Mimulus suksdorfii Suksdorf's monkeyflower

native
Annual herb

Mimulus verbenaceus Cardinal monkey flower

native
Perennial herb

Mirabilis bigelovii Wishbone bush

native
Perennial herb

Mirabilis linearis Narrow leaf four o'clock, Narrowleaf four o'clock

non-native
Perennial herb

Mirabilis multiflora Colorado four o'clock, Giant four o'clock

native
Perennial herb

Mirabilis pumila Dwarf four o'clock

native
Perennial herb

Mohavea breviflora Golden desert snapdragon

native
Perennial herb

Mollugo cerviana Carpet weed, Threadstem carpetweed

non-native
Annual herb

MOLLUGINACEAE

Monarda pectinata Bee balm, Pony beebalm

• rare native
Annual herb

Monardella glauca Mountain mint, Mountain pennyroyal

native
Perennial herb

Monroa squarrosa False buffalo grass

• rare native
Annual grass

Montia chamissoi Spring beauty, Toad lily, Water minerslettuce

native
Perennial herb

Mortonia utahensis Utah mortonia

• rare native
Shrub

CELASTRACEAE

Morus alba White mulberry

non-native
Tree

MORACEAE

Muhlenbergia appressa Appressed muhly, Devils canyon muhly

• rare native
Annual grass

Muhlenbergia asperifolia Scratchgrass

native
Perennial grass

Muhlenbergia filiformis Pullup muhly, Slender muhly

native
Annual, Perennial grass

Muhlenbergia fragilis Delicate muhly

• rare native
Annual grass

Muhlenbergia microsperma Annual muhly, Littleseed muhly

native
Annual grass

Muhlenbergia minutissima Annual muhly

native
Annual grass

Muhlenbergia montana Mountain muhly

native
Perennial grass

Muhlenbergia pauciflora Few flowered muhly, New mexico muhly

• rare native
Perennial grass (rhizomatous)

Muhlenbergia porteri Bush muhly, Porter's muhly

native
Perennial grass

Muhlenbergia repens Creeping muhly

non-native
Perennial grass

Muhlenbergia richardsonis Mat muhly, Matted muhly, Richardson's muhly

native
Perennial grass

Myosurus apetalus var. montanus Bristly mousetail

native
Annual herb

Myosurus cupulatus Arizona mousetail, Desert mouse tail

native
Annual herb

Myosurus minimus Common mouse tail, Little mouse tail, Tiny mousetail

native
Annual herb

Nama demissum Purplemat

native
Annual herb

NAMACEAE

Nama dichotomum

native
Annual herb

NAMACEAE

Nemacladus glanduliferus Glandular nemacladus, Glandular threadplant, Thread plant

native
Annual herb

CAMPANULACEAE

Nemacladus glanduliferus var. orientalis Eastern glandular nemacladus

native
Annual herb

CAMPANULACEAE

Nemacladus glanduliferus var. orientalis

Neogaerrhinum filipes Tangled snapdragon, Twining snapdragon

native
Annual herb

Nepeta cataria Catnip

non-native
Perennial herb

Nicotiana attenuata Coyote tobacco

native
Annual herb

Nicotiana glauca Tree tobacco

• invasive non-native
Tree, Shrub

Nicotiana obtusifolia Desert tobacco

native
Perennial herb

Nicotiana obtusifolia var. obtusifolia Desert tobacco

native
Perennial herb

Nolina parryi Parry's beargrass, Parry's nolina

native
Perennial herb

Oenothera caespitosa Fragrant evening-primrose

native
Perennial herb

Oenothera caespitosa ssp. crinita Cespitose evening-primrose

• rare native
Perennial herb (rhizomatous)

Oenothera caespitosa ssp. marginata Fragrant evening-primrose

native
Perennial herb

Oenothera caespitosa var. navajoensis Small Tree-Mallow

Oenothera cavernae Cavedwelling evening primrose

• rare native
Perennial herb

Oenothera deltoides Birdcage evening primrose, Desert lantern, Dune primrose

native
Annual herb

Oenothera elata Evening primrose, Hooker's evening primrose

native
Perennial herb

Oenothera elata ssp. hookeri Common evening primrose, Evening primrose, Hooker's evening primrose

native
Perennial herb

Oenothera flava Yellow evening primrose

native
Perennial herb

Oenothera longissima Long evening primrose, Longstem evening primrose

• rare native
Perennial herb

Oenothera pallida Pale evening primrose

non-native
Perennial herb

Oenothera primiveris Yellow desert evening primrose

native
Annual herb

Oenothera villosa ssp. strigosa Hairy evening primrose

native
Perennial herb

Olea europaea Olive

• invasive non-native
Tree, Shrub

Onopordum acanthium Scotch cottonthistle

• invasive non-native
Perennial herb

Opuntia acanthocarpa Buck horn cholla

native
Perennial herb (stem succulent)

Opuntia basilaris Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

Opuntia basilaris var. basilaris Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

Opuntia basilaris var. longiareolata Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

Opuntia bigelovii Teddybear cholla

native
Shrub (stem succulent)

Opuntia chlorotica Dollarjoint pricklypear, Pancake cactus, Pancake prickly pear

native
Shrub (stem succulent)

Opuntia echinocarpa Silver cholla

native
Shrub (stem succulent)

Opuntia engelmannii var. engelmannii Cactus apple, Engelmann prickly pear

native
Shrub

Opuntia erinacea Grizzlybear pricklypear

native
Shrub (stem succulent)

Opuntia erinacea var. hystricina Grizzlybear pricklypear

native
Shrub (stem succulent)

Opuntia erinacea var. ursina Grizzlybear pricklypear

native
Shrub (stem succulent)

Opuntia erinacea var. utahensis Grizzlybear pricklypear

native
Shrub (stem succulent)

Opuntia fragilis Brittle prickly pear, Brittle pricklypear, Pigmy tuna

• rare native
Shrub (stem succulent)

Opuntia macrorhiza Twistspine pricklypear

non-native
Shrub (stem succulent)

Opuntia phaeacantha Brown spined prickly pear, Mojave prickly pear, Tulip pricklypear

native
Shrub (stem succulent)

Opuntia phaeacantha var. major Brown spined prickly pear, Mojave prickly pear, Tulip pricklypear

native
Shrub (stem succulent)

Opuntia polyacantha Plains pricklypear

native
Shrub (stem succulent)

Opuntia polyacantha var. trichophora Grizzlybear pricklypear

native
Shrub (stem succulent)

Orobanche cooperi Burroweed strangler

native
Perennial herb (parasitic)

Orobanche fasciculata Clustered broomrape

native
Perennial herb (parasitic)

Orobanche ludoviciana ssp. ludoviciana Suksdorf's broom rape

• rare native
Perennial herb

Orthilia secunda One sided wintergreen, Sidebells wintergreen

native
Perennial herb

Orthocarpus luteus Yellow owl's clover

native
Annual herb

Osmorhiza depauperata Bluntseed sweetroot, Little sweet cicely

• rare native
Perennial herb

Oxalis albicans Californica wood sorrel

native
Perennial herb

OXALIDACEAE

Oxalis albicans ssp. pilosa Hairy wood sorrel

native
Annual herb

OXALIDACEAE

Packera multilobata Lobeleaf groundsel

native
Perennial herb

Packera werneriifolia Hoary groundsel

native
Perennial herb

Panicum capillare Old witch grass, Witchgrass, Witch grass

native
Annual grass

Panicum hirticaule Mexican panicgrass

native
Annual grass

Parietaria hespera Pelitory, Pellitory, Rillita pellitory

native
Annual herb

Parietaria pensylvanica Pennsylvania pellitory

native
Annual herb

Parthenium incanum Mariola

non-native
Perennial herb

Parthenocissus vitacea Woodbine

non-native
Vine, Shrub

VITACEAE

Pascopyrum smithii Western wheat grass

native
Perennial grass

Paspalum dilatatum Dallis grass, Dallisgrass

non-native
Perennial grass

Paxistima myrsinites Oregon boxleaf, Oregon boxwood

native
Shrub

CELASTRACEAE

Pectis papposa Manybristle chinchweed

native
Annual herb

Pectocarya heterocarpa Chuckwalla combseed, Chuckwalla pectocarya, Hairy leaved comb bur

native
Annual herb

Pectocarya platycarpa Broad fruited combseed, Broad nutted comb bur, Broadfruit combseed

native
Annual herb

Pectocarya recurvata Arch nutted comb bur, Curvenut combseed

native
Annual herb

Pedicularis centranthera Dwarf lousewort

• rare native
Perennial herb

Pellaea truncata Cliff brake, Spiny cliffbrake

• rare native
Fern (rhizomatous)

Pennisetum glaucum Pearl millet

non-native
Annual, Perennial grass

Penstemon caespitosus var. desertipicti Mat penstemon

non-native
Perennial herb

Penstemon eatonii Eaton firecracker, Eaton's penstemon, Firecracker Penstemon

native
Perennial herb

Penstemon eatonii ssp. undosus Eaton's firecracker, Eaton's penstemon

native
Perennial herb

Penstemon palmeri Palmer's penstemon

native
Perennial herb

Penstemon palmeri var. eglandulosus Palmer's penstemon

native
Perennial herb

Penstemon pseudospectabilis Desert penstemon

native
Perennial herb

Penstemon rostriflorus Beaked penstemon, Bridge penstemon, Bridge's penstemon

native
Perennial herb

Penstemon rydbergii Rydberg's penstemon

native
Perennial herb

Penstemon utahensis Utah penstemon

• rare native
Perennial herb

Perideridia gairdneri Gairdner's yampah, Gardner's yampah

native
Perennial herb

Perideridia parishii Parish's yampah

native
Perennial herb

Perityle emoryi Emory's rock daisy, Emory's rockdaisy

native
Annual herb

Petalonyx nitidus Shiny leaf sandpaper plant, Shinyleaf sandpaper plant, sand paper plant

native
Perennial herb

Petradoria pumila Rock goldenrod

native
Perennial herb

Petrophyton caespitosum Mat rockspirea

native
Shrub

Petrophyton caespitosum var. elatius Mat rockspirea

native
Shrub

Peucephyllum schottii Desert fir, Desert pine, Pigmycedar

native
Shrub

Phacelia affinis Limestone phacelia, Purple bell phacelia

native
Annual herb

Phacelia coerulea Sky blue phacelia

• rare native
Annual herb

Phacelia crenulata Cleftleaf wildheliotrope, Heliotrope phacelia, Notch leaved phacelia

native
Annual herb

Phacelia crenulata var. ambigua Heliotrope phacelia, Notch leaved phacelia, Purplestem phacelia

native
Annual herb

Phacelia crenulata var. corrugata Cleftleaf wildheliotrope, Heliotrope phacelia, Notch leaved phacelia

native
Annual herb

Phacelia cryptantha Hiddenflower phacelia, Limestone phacelia, Small flowered phacelia

native
Annual herb

Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope

native
Annual herb

Phacelia egena Kaweah river phacelia, Rock phacelia

native
Perennial herb

Phacelia fremontii Fremont's phacelia

native
Annual herb

Phacelia ivesiana Ives' phacelia

native
Annual herb

Phacelia pedicellata Pedicellate phacelia, Specter phacelia

native
Annual herb

Phacelia pulchella Beautiful phacelia

native
Annual herb

Phacelia rotundifolia Round leafed phacelia, Roundleaf phacelia

native
Annual herb

Phacelia saxicola Rock phacelia, Stonecrop phacelia

native
Annual herb

Phacelia serrata Saw phacelia

non-native
Perennial herb

Phacelia vallis-mortae Death valley phacelia

native
Annual herb

Phalaris arundinacea Reed canarygrass

native
Perennial grass

Philadelphus microphyllus Desert syringa, Little leaf mock orange, Littleleaf mock orange

native
Shrub

HYDRANGEACEAE

Phleum alpinum Alpine timothy, Mountain timothy, Timothy grass

native
Perennial grass

Phleum pratense Common timothy, Cultivated timothy, Timothy

non-native
Perennial grass

Phlox austromontana Southern mountain phlox

native
Perennial herb

Phlox austromontana ssp. austromontana Southern mountain phlox

native
Perennial herb

Phlox austromontana ssp. densa Southern mountain phlox

native
Perennial herb

Phlox austromontana ssp. prostrata Southern mountain phlox

native
Perennial herb

Phlox diffusa ssp. subcarinata Southern mountain phlox

native
Perennial herb

Phlox gracilis Slender phlox

native
Annual herb

Phlox gracilis ssp. gracilis Slender phlox

native
Annual herb

Phlox longifolia Longleaf phlox

native
Perennial herb

Phlox longifolia ssp. brevifolia Cold-desert phlox

native
Perennial herb

Phlox stansburyi Cold desert phlox

native
Perennial herb

Phlox stansburyi ssp. stansburyi Cold-desert phlox

native
Perennial herb

Phlox viridis ssp. longipes Green phlox

native
Perennial herb

Phoenix dactylifera Date palm

non-native
Tree, Shrub

ARECACEAE

Pholistoma auritum Blue fiestaflower, Fiesta flower

native
Annual herb

Pholistoma auritum var. arizonicum Arizona fiestaflower, Arizona pholistoma

• rare native
Annual herb

Phoradendron californicum California mesquite mistletoe, Desert mistletoe, Mesquite mistletoe

native
Shrub (parasitic)

Phoradendron juniperinum Juniper mistletoe

native
Shrub (parasitic)

Phragmites australis Common reed

native
Perennial grass

Phyla cuneifolia Wedgeleaf

native
Perennial herb

Phyllodoce empetriformis Klamath mountain heather, Pink mountainheath

native
Shrub

Physalis crassifolia Thick leaved ground cherry, Yellow nightshade ground cherry, Yellow nightshade groundcherry

native
Annual, Perennial herb

Physalis hederifolia Ivy leafed tomatillo, Ivy leaved ground cherry, Ivyleaf groundcherry

native
Perennial herb

Physalis hederifolia var. fendleri Fendler's groundcherry, Fendler's ivy leaf tomatillo

native
Perennial herb

Physalis pubescens Husk tomato

non-native
Perennial herb

Physaria chambersii Chambers' twinpod, Double bladderpod

• rare native
Perennial herb

Picea engelmannii Engelmann spruce

• rare native
Tree

Picea pungens Blue spruce

non-native
Tree

Pinus edulis Two needle pinyon pine, Twoneedle pinyon

• rare native
Tree

Pinus monophylla Nut pine, Oneneedle pinyon pine, Single leaf pinyon pine

native
Tree

Pinus ponderosa Ponderosa pine, Western yellow pine

native
Tree

Pinus ponderosa var. scopulorum Ponderosa pine, Western yellow pine

native
Tree

Piptatherum miliaceum Smilo grass

• invasive non-native
Perennial grass

Plagiobothrys arizonicus Arizona popcorn flower, Arizona popcornflower

native
Annual herb

Plagiobothrys jonesii Simpson's popcornflower, mojave popcornflower

native
Annual herb

Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass

• invasive non-native
Perennial herb

Plantago major Common plantain

non-native
Perennial herb

Plantago ovata Desert indianwheat, Desert plantain, Woolly plantain

native
Annual herb

Plantago patagonica Patagonia plantain, Woolly plantain

native
Annual herb

Platanthera hyperborea var. gracilis Slender bog orchid

• rare native
Perennial herb

Platanthera sparsiflora Bog orchid, Sparse flowered bog orchid

native
Perennial herb

Pleuraphis jamesii Galleta

native
Perennial grass

Pleuraphis rigida Big galleta

native
Perennial grass

Pleurocoronis pluriseta Arrow leaf, Bush arrowleaf

native
Shrub

Pluchea odorata var. odorata Salt marsh fleabane

native
Annual, Perennial herb

Pluchea sericea Arrow wed, Arrow weed, Arrowweed

native
Shrub

Poa annua Annual blue grass, Annual bluegrass

non-native
Annual grass

Poa arida Plains bluegrass

non-native
Perennial grass

Poa bigelovii Bigelow's blue grass, Bigelow's bluegrass

native
Annual grass

Poa compressa Canada blue grass, Canada bluegrass

non-native
Perennial grass

Poa fendleriana Muttongrass

native
Perennial grass

Poa pratensis Kentucky blue grass, Kentucky bluegrass

• invasive non-native
Perennial grass

Polanisia dodecandra Redwhisker clammyweed

native
Annual herb

Polanisia dodecandra ssp. trachysperma Clammy weed, Sandyseed clammyweed

native
Annual herb

Poliomintha incana Frosted mint

• rare native
Shrub

Polygala subspinosa Spiny milkwort

• rare native
Perennial herb

POLYGALACEAE

Polygonum amphibium Water smartweed

native
Perennial herb (aquatic)

Polygonum amphibium var. emersum Water smartweed

native
Perennial herb (aquatic)

Polygonum amphibium var. stipulaceum Water smartweed

native
Perennial herb (aquatic)

Polygonum argyrocoleon Persian knotweed, Silver sheath knotweed, Silversheath knotweed

non-native
Annual herb

Polygonum aviculare Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum bistortoides Western Bistort

native
Perennial herb

Polygonum convolvulus Black bindweed

non-native
Annual herb

Polygonum douglasii Douglas' knotweed

native
Annual herb

Polygonum douglasii ssp. johnstonii Knotweed

native
Annual, Perennial herb

Polygonum lapathifolium Common knotweed

native
Annual herb

Polygonum persicaria Spotted ladysthumb

non-native
Annual herb

Polygonum polygaloides ssp. kelloggii Kellogg's knotweed

native
Annual herb

Polygonum punctatum Dotted smartweed

native
Perennial herb

Polypogon interruptus Ditch beard grass, Ditch rabbitsfoot grass

non-native
Perennial grass

Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass

• invasive non-native
Annual grass

Polypogon viridis Water beard grass

non-native
Perennial grass

Populus angustifolia Narrow leaved cottonwood, Narrowleaf cottonwood

• rare native
Tree

Populus fremontii Fremont cottonwood

native
Tree

Populus tremuloides Quaking aspen

native
Tree

Populus Xcanadensis Carolina poplar

non-native
Tree

Porophyllum gracile Odora, Slender poreleaf

native
Perennial herb

Portulaca oleracea Common purslane, Little hogweed, Purslane

non-native
Annual herb

PORTULACACEAE

Potamogeton crispus Crispate leaved pondweed, Curly pondweed, Cut leaved pondweed

• invasive non-native
Perennial herb (aquatic)

Potamogeton diversifolius Diverse leaved pondweed, Rafinesque's pondweed, Waterthread pondweed

native
Perennial herb (aquatic)

Potamogeton foliosus Leafy pondweed

native
Perennial herb (aquatic)

Potamogeton natans Floating leaved pondweed, Floating pondweed

native
Perennial herb (aquatic)

Potentilla biennis Biennial cinquefoil

native
Perennial herb

Potentilla diversifolia Blueleaf cinquefoil

native
Perennial herb

Potentilla glandulosa Sticky cinquefoil

native
Perennial herb

Potentilla glandulosa ssp. arizonica Sticky cinquefoil

native
Perennial herb

Potentilla norvegica Norwegian cinquefoil

non-native
Annual, Perennial herb

Potentilla pulcherrima Beautiful cinquefoil

• rare native
Perennial herb

Prenanthella exigua Bright white, Brightwhite, Thorny skeleton plant

native
Annual herb

Proboscidea parviflora Doubleclaw

native
Annual herb

MARTYNIACEAE

Prosopis glandulosa Honey mesquite

native
Tree, Shrub

Prosopis glandulosa var. torreyana Honey mesquite

native
Shrub

Prunella vulgaris Common selfheal, Self heal, Selfheal

native
Perennial herb

Prunus armeniaca Apricot

non-native
Tree

Prunus domestica European plum

non-native
Tree

Prunus emarginata Bitter cherry

native
Tree, Shrub

Prunus fasciculata Desert almond, Desert range almond

native
Shrub

Prunus persica Peach

non-native
Tree

Prunus persica var. nucipersica Peach

non-native
Tree

Prunus virginiana Chokecherry

native
Tree, Shrub

Prunus virginiana var. demissa Chokecherry, Western choke cherry, Western chokecherry

native
Tree, Shrub

Prunus virginiana var. melanocarpa Chokecherry, Western choke cherry, Western chokecherry

native
Tree, Shrub

Psathyrotes annua Annual psathyrotes

native
Annual herb

Psathyrotes ramosissima Velvet rosette, Velvet turtleback

native
Annual, Perennial herb

Pseudognaphalium canescens ssp. canescens Wright's cudweed

native
Perennial herb

Pseudognaphalium canescens ssp. canescens

Pseudognaphalium luteoalbum Jersey cudweed

non-native
Annual herb

Pseudognaphalium macounii Macoun's everlasting

native
Annual, Perennial herb

Pseudognaphalium stramineum Cottonbatting plant

native
Perennial herb

Pseudostellaria jamesiana Tuber starwort

native
Perennial herb

Pseudotsuga menziesii Douglas fir

native
Tree

Pseudotsuga menziesii var. glauca Douglas fir

native
Tree

Psoralidium lanceolatum Lance-leaved scurf-pea

• rare native
Perennial herb

Psorothamnus arborescens California dalea, Mojave indigo bush, Mojave indigobush

native
Shrub

Psorothamnus arborescens var. pubescens California dalea, Mojave indigo bush, Mojave indigobush

native
Shrub

Psorothamnus fremontii var. attenuatus Fremont's dalea, Fremont's indigo bush

• rare native
Shrub

Pteridium aquilinum Western brackenfern

native
Fern

DENNSTAEDTIACEAE

Pteridium aquilinum var. pubescens Hairy brackenfern, Western bracken fern

native
Fern

DENNSTAEDTIACEAE

Pterospora andromedea Pine drops, Pine drops, Woodland pinedrops

native
Perennial herb (parasitic)

Pterostegia drymarioides Fairy mist, Woodland threadstem

native
Annual herb

Pteryxia petraea Rock cymopterus

native
Perennial herb

Puccinellia distans European alkali grass, Weeping alkaligrass

non-native
Perennial grass

Punica granatum Pomegranate

non-native
Shrub

LYTHRACEAE

Purshia mexicana Mexican cliffrose

native
Shrub

Purshia tridentata Antelope bitterbrush, Antelope bush, Bitterbrush

native
Shrub

Pyrola chlorantha Green flowered wintergreen, Greenflowered wintergreen

• rare native
Shrub (stem succulent)

Pyrola picta White veined shinleaf, White veined wintergreen, Whitevein shinleaf

native
Perennial herb

Pyrus communis Common pear

non-native
Tree

Quercus turbinella Grey oak, Shrub live oak, Sonoran scrub oak

• rare native
Shrub

FAGACEAE

Rafinesquia californica California chicory, California plumseed

native
Annual herb

Rafinesquia neomexicana California chicory, Desert chicory, New mexico plumseed

native
Annual herb

Ranunculus cymbalaria Alkali buttercup

native
Perennial herb

Ranunculus flammula Creeping buttercup, Greater creeping spearwort, Water buttercup

native
Perennial herb

Ranunculus flammula var. flammula Greater creeping spearwort

native
Perennial herb

Ranunculus sceleratus Cursed buttercup, Cursed crowfoot

native
Annual herb (aquatic)

Ranunculus uncinatus Hook seeded buttercup, Hooked fruit buttercup, Woodland buttercup

native
Annual, Perennial herb

Ratibida columnifera Upright prairie coneflower

non-native
Perennial herb

Rhus glabra Smooth sumac

non-native
Tree

Rhus ovata Sugar bush, Sugar sumac

native
Shrub

Rhus trilobata Fragrant sumac, Skunk Bush

native
Shrub

Rhus trilobata var. simplicifolia Fragrant sumac, Skunk Bush

native
Shrub

Ribes cereum Wax currant

native
Shrub

Ribes cereum var. cereum Wax currant

native
Shrub

Ribes cereum var. pedicellare Wax currant

native
Shrub

Ribes inerme White stemmed gooseberry, Whitestem gooseberry

native
Shrub

Ribes montigenum Alpine prickly current, Gooseberry currant, Mountain gooseberry

native
Shrub

Ribes velutinum Desert gooseberry

native
Shrub

Ribes viscosissimum Sticky currant, Sticky flowering currant

native
Shrub

Robinia neomexicana Desert locust, New mexico locust

• rare native
Tree, Shrub

Rorippa curvipes Bluntleaf yellow cress, Bluntleaf yellowcress

native
Annual herb

Rorippa curvipes var. curvipes Bluntleaf yellow cress, Bluntleaf yellowcress

native
Annual herb

Rorippa nasturtium-aquaticum Watercress

native
Perennial herb (aquatic)

Rorippa palustris Bog yellow cress, Bog yellowcress

native
Annual, Perennial herb

Rosa woodsii var. ultramontana Interior rose

native
Shrub

Rosa woodsii var. woodsii Woods' rose

native
Shrub

Rosmarinus officinalis Rosemary

non-native
Shrub

Rubus armeniacus Himalayan blackberry, black berry, Armenian blackberry

• invasive non-native
Shrub

Rubus idaeus ssp. strigosus Grayleaf red raspberry

native
Shrub

Rumex acetosella Common sheep sorrel

• invasive non-native
Perennial herb

Rumex crispus Curly dock, Curly leaved dock, Rhubarb

• invasive non-native
Perennial herb

Rumex dentatus Toothed dock

non-native
Annual, Perennial herb

Rumex hymenosepalus Canaigre dock, Wild rhubarb

native
Perennial herb

Rumex obtusifolius Bitter dock

non-native
Perennial herb

Rumex salicifolius var. denticulatus California dock

native
Perennial herb

Rumex salicifolius var. mexicanus Willow dock

native
Perennial herb

Saccharum ravennae Ravennagrass

• invasive non-native
Perennial grass

Sagina saginoides Alpine pearlwort, Arctic pearlwort, Common pearlwort

native
Perennial herb

Sairocarpus kingii King's snapdragon

native
Annual herb

Salazaria mexicana Mexican bladdersage, Paperbag bush

native
Shrub

Salix bebbiana Bebb willow, Gray willow

• rare native
Tree

Salix exigua Narrow leaved willow, Narrowleaf willow, Sandbar willow

native
Tree, Shrub

Salix gooddingii Goodding's black willow, Goodding's willow, Gooding's willow

native
Tree

Salix laevigata Polished willow, Red willow

native
Tree

Salix lasiolepis Arroyo willow

native
Tree, Shrub

Salix lucida ssp. lasiandra Pacific willow

native
Tree

Salix scouleriana Nuttall willow, Scouler willow, Scouler's willow

native
Tree, Shrub

Salsola tragus Prickly russian thistle, Russianthistle, Tumbleweed

• invasive non-native
Annual herb

Salvia aethiopis Mediterranean sage

• invasive non-native
Perennial herb

Salvia dorrii Desert sage, Dorr's sage, Purple sage

native
Shrub

Salvia reflexa Lanceleaf sage

non-native
Annual herb

Sambucus glauca Blue elderberry

native
Shrub

Sambucus nigra ssp. canadensis Blue elderberry

native
Shrub

Sambucus racemosa var. melanocarpa Rocky mountain elder

native
Shrub

Sambucus racemosa var. racemosa Pacific red elderberry

native
Shrub

Samolus valerandi ssp. parviflorus Water pimpernel

native
Perennial herb

THEOPHRASTACEAE

Sanvitalia abertii Abert's sanvitalia, Abert's creeping zinnia

• rare native
Annual herb

Schismus arabicus Arabian schismus, Mediterranean grass

• invasive non-native
Annual grass

Schismus barbatus Common mediterranean grass, Old han schismus

• invasive non-native
Annual grass

Schizachyrium scoparium Little bluestem

non-native
Perennial grass

Schizachyrium scoparium var. scoparium Little bluestem

non-native
Perennial grass

Schkuhria multiflora Many flowered bahia

• rare native
Annual herb

Schoenoplectus americanus Chairmaker's bulrush

native
Perennial grasslike herb

Schoenoplectus maritimus Small Tree-Mallow

Schoenoplectus pungens var. longispicatus Common threesquare

native
Perennial grasslike herb

Schoenoplectus pungens var. longispicatus

Schoenoplectus tabernaemontani Softstem bulrush

native
Perennial grasslike herb

Sclerocactus johnsonii Johnson's devil claw, Johnson's fishhook cactus

• rare native
Shrub (stem succulent)

Scleropogon brevifolius Burro grass, Burrograss

• rare native
Perennial grass

Sedum lanceolatum Lance leaf stonecrop, Spearleaf stonecrop

native
Perennial herb

CRASSULACEAE

Selaginella watsonii Watson's spike moss, Watson's spikemoss

native

SELAGINELLACEAE

Senecio flaccidus var. flaccidus Shrubby ragwort, Threadleaf ragwort

native
Shrub

Senecio flaccidus var. monoensis Mono groundsel, Mono ragwort

native
Shrub

Senecio mohavensis Mojave groundsel, Mojave ragwort

native
Annual herb

Senecio spartioides Broom groundsel, Broomlike ragwort

native
Perennial herb

Senecio spartioides var. multicapitatus Broom groundsel, Broomlike ragwort

native
Perennial herb

Senna covesii Coves' cassia, Coves's cassia

• rare native
Perennial herb

Setaria leucopila Streambed bristlegrass

non-native
Annual grass

Setaria verticillata Hooked bristlegrass

non-native
Annual grass

Setaria viridis Green bristlegrass, Green foxtail

non-native
Annual grass

Shepherdia argentea Buffalo berry, Silver buffaloberry

native
Tree, Shrub

ELAEAGNACEAE

Sidalcea neomexicana Mountain sidalcea, Salt spring checkerbloom

• rare native
Perennial herb

Silene antirrhina Sleepy catch fly, Sleepy catchfly, Sleepy silene

native
Annual herb

Silene menziesii Menzies' campion

native
Perennial herb

Silene noctiflora Night flowering campion, Nightflowering silene

non-native
Annual herb

Silene scouleri Simple campion

native
Perennial herb

Silene scouleri ssp. pringlei Simple campion

native
Perennial herb

Sisymbrium altissimum Tall tumblemustard, Tumble mustard, Tumbling mustard

non-native
Annual herb

Sisymbrium irio London rocket

• invasive non-native
Annual herb

Sisyrinchium demissum Stiff blue-eyed grass

non-native
Perennial herb

IRIDACEAE

Solanum americanum American black nightshade, Common nightshade, Small flowered nightshade

native
Annual, Perennial herb

Solanum douglasii Douglas' nightshade, Greenspot nightshade

native
Perennial herb

Solanum elaeagnifolium Horse nettle, Silver leaved horsenettle, Silverleaf nightshade

• invasive non-native
Perennial herb

Solanum jamesii Wild potato

non-native
Perennial herb

Solanum lycopersicum var. lycopersicum Tomato

non-native
Annual, Perennial herb

Solanum nigrum Black nightshade

non-native
Annual herb

Solanum physalifolium Hoe nightshade

non-native
Shrub

Solanum rostratum Buffalo berry, Buffalobur nightshade

non-native
Annual herb

Solanum triflorum Cutleaf nightshade, Three flowered nightshade

non-native
Annual herb

Solidago canadensis Canada goldenrod

native
Perennial herb

Solidago canadensis var. gilvocanescens Canada goldenrod

native
Perennial herb

Solidago canadensis var. scabra Canada goldenrod

native
Perennial herb

Solidago missouriensis Nevada goldenrod, Showy goldenrod

native
Perennial herb

Solidago multiradiata Northern goldenrod, Rocky mountain goldenrod

native
Perennial herb

Solidago velutina Threenerve goldenrod

native
Perennial herb

Sonchus asper Spiny sowthistle

non-native
Annual herb

Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle

non-native
Annual herb

Sophora japonica Japanese pagoda tree

non-native
Tree

Sorghum halepense Johnsongrass

• invasive non-native
Perennial grass

Sparganium angustifolium Narrow leaved bur reed, Narrowleaf bur reed

native
Perennial herb

Spergularia salina Salt marsh sand spurry

native
Annual herb

Sphaeralcea ambigua Apricot mallow, Desert globemallow, Desert mallow

native
Perennial herb

Sphaeralcea emoryi Emory's globemallow

native
Perennial herb

Sphaeralcea grossulariifolia Gooseberryleaf globemallow

• rare native
Perennial herb, Shrub

Sphaeralcea grossulariifolia ssp. pedata Gooseberryleaf globemallow

• rare native
Perennial herb, Shrub

Sphaeralcea grossulariifolia ssp. pedata

Sphaeralcea rusbyi Rusby's globemallow

native
Perennial herb

Spiranthes romanzoffiana Hooded ladies tresses, Hooded ladies' tresses, Ladies' tresses

native
Perennial herb

Sporobolus airoides Alkali sacaton

native
Perennial grass

Sporobolus contractus Spike dropseed

native
Perennial grass

Sporobolus cryptandrus Sand dropseed

native
Perennial grass

Sporobolus flexuosus Mesa dropseed

native
Perennial grass

Stanleya pinnata Desert princesplume, Prince's plume

native
Perennial herb, Shrub

Stellaria media Chickweed

non-native
Annual herb

Stellaria nitens Shining chickweed, Shiny chickweed, Smooth chickweed

native
Annual herb

Stellaria umbellata Umbellate chickweed, Umbrella starwort

native
Perennial herb

Stemodia durantifolia White woolly stemodia, Whitewoolly twintip

• rare native
Perennial herb

Stephanomeria exigua Small wirelettuce

native
Annual herb

Stephanomeria minor var. minor Narrow leaved stephanomeria, Narrow leaved wire lettuce, Wire lettuce

native
Perennial herb

Stephanomeria parryi Parry rock pink, Parry's stephanomeria, Parry's wirelettuce

native
Perennial herb

Stephanomeria pauciflora Brownplume wirelettuce, Desert straw, Wire lettuce

native
Perennial herb

Streptanthella longirostris Long beaked twist flower, Longbeak streptanthella, Streptanthella

native
Annual herb

Streptanthus cordatus Heartleaf jewelflower, Heartleaf twistflower

native
Perennial herb

Stuckenia pectinatus Sago pondweed

native
Perennial herb (aquatic)

Stylocline micropoides Desert nest straw, Woollyhead neststraw

native
Annual herb

Suaeda moquinii Bush seepweed

native
Perennial herb

Suaeda suffrutescens Desert seepweed

non-native
Perennial herb

Symphoricarpos longiflorus Desert snowberry, long flowered snowberry

native
Shrub

CAPRIFOLIACEAE

Symphoricarpos rotundifolius Mountain snowberry, Roundleaf snowberry

native
Shrub

CAPRIFOLIACEAE

Symphoricarpos rotundifolius var. parishii Parish's snowberry

native
Shrub

CAPRIFOLIACEAE

Symphoricarpos rotundifolius var. parishii

Symphyotrichum ascendens Western aster

native
Perennial herb

Symphyotrichum foliaceum var. canbyi Canby's aster

native
Perennial herb

Tamarix aphylla Athel tamarisk, Athel tree

• invasive non-native
Tree

TAMARICACEAE

Tamarix chinensis Chinese tamarisk, Fivestamen tamarisk, Salt cedar

• invasive non-native
Shrub

TAMARICACEAE

Tamarix ramosissima Saltcedar, Tamarisk

• invasive non-native
Tree, Shrub

TAMARICACEAE

Tanacetum vulgare Common tansy

• invasive non-native
Perennial herb

Taraxacum laevigatum Common dandelion, Dandelion, Red seeded dandelion

non-native
Perennial herb

Taraxacum officinale Common dandelion, Dandelion, Red seeded dandelion

• invasive non-native
Perennial herb

Taraxacum officinale ssp. officinale Common dandelion

non-native
Perennial herb

Tetradymia canescens Gray horsebrush, Spineless horsebrush

native
Shrub

Tetraneuris acaulis var. acaulis Stemless four nerve daisy

native
Perennial herb

Tetraneuris acaulis var. arizonica Arizona four nerve daisy

native
Perennial herb

Thalictrum fendleri Fendler's meadow rue, Meadow rue

native
Perennial herb

Thamnosma montana Turpentine broom, Turpentinebroom

native
Shrub

RUTACEAE

Thelypodium integrifolium Entire leaved thelypodium, Entireleaved thelypody

native
Perennial herb

Thelypodium integrifolium ssp. longicarpum Entire leaved thelypodium, Entireleaved thelypody

native
Perennial herb

Thelypodium integrifolium ssp. longicarpum

Thinopyrum intermedium Intermediate wheatgrass

non-native
Perennial grass

Thlaspi arvense Fan weed, Field pennycress

non-native
Annual herb

Thlaspi montanum var. fendleri Pennycress

native
Perennial herb

Thymophylla pentachaeta Fiveneedle pricklyleaf

native
Perennial herb

Thymophylla pentachaeta var. belenidium Five needled thymophylla, Fiveneedle pricklyleaf

native
Perennial herb

Thymophylla pentachaeta var. pentachaeta Fiveneedle pricklyleaf

native
Perennial herb

Thymophylla pentachaeta var. pentachaeta

Thysanocarpus curvipes Fringe pod, Fringed pod, Hairy lacepod

native
Annual herb

Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod

native
Annual herb

Tidestromia lanuginosa Woolly tidestromia

native
Annual herb

Tidestromia oblongifolia Honeysweet

native
Annual herb

Tiquilia canescens Shrubby coldenia, Woody crinklemat

native
Perennial herb, Shrub

EHRETIACEAE

Tragia ramosa Branched noseburn, Desert noseburn

• rare native
Perennial herb

Tragopogon dubius Goat's beard, Yellow salsify

• invasive non-native
Perennial herb

Tragopogon porrifolius Purple salsify

non-native
Perennial herb

Trianthema portulacastrum Desert horsepurslane, Horse purslane, Lowland purslane

native
Annual herb

AIZOACEAE

Tribulus terrestris Puncture vine, Puncturevine

• invasive non-native
Annual herb

Tricardia watsonii Three hearts, Threehearts

native
Perennial herb

Tridens muticus Slim tridens

native
Perennial grass

Tridens muticus var. elongatus Slim tridens

native
Perennial grass

Trifolium andinum Intermountain clover

non-native
Perennial herb

Trifolium gymnocarpon Hollyleaf clover

native
Perennial herb

Trifolium gymnocarpon ssp. gymnocarpon Hollyleaf clover

native
Perennial herb

Trifolium hybridum Alsike clover

non-native
Perennial herb

Trifolium longipes Long stalked clover, Longstalk clover, Summer clover

native
Perennial herb

Trifolium longipes ssp. pygmaeum Long stalked clover, Longstalk clover, Summer clover

native
Perennial herb

Trifolium repens White clover

non-native
Perennial herb

Trisetum spicatum Narrow oatgrass, Spike trisetum

native
Perennial grass

Triticum aestivum Common wheat, Wheat

non-native
Annual grass

Trixis californica American threefold

native
Shrub

Typha angustifolia Nail rod, Narrow leaf cattail, Narrowleaf cattail

non-native
Perennial herb (aquatic)

Typha domingensis Narrowleaf cattail, Southern cattail

native
Perennial herb

Typha latifolia Broadleaf cattail, Common cattail, Soft flag

native
Perennial herb (aquatic)

Ulmus procera Smooth leaved elm, english elm

non-native
Tree

ULMACEAE

Ulmus pumila Siberian elm

• invasive non-native
Tree

ULMACEAE

Uropappus lindleyi Silver puffs, Uropappus

native
Annual herb

Urtica dioica ssp. gracilis American stinging nettle, California nettle

native
Perennial herb

Valeriana occidentalis Western valerian

• rare native
Perennial herb

VALERIANACEAE

Verbascum thapsus Common mullein, Woolly mullein

• invasive non-native
Perennial herb

SCROPHULARIACEAE

Verbena bracteata Bigbract verbena, Bracted verbena

native
Annual, Perennial herb

Verbesina encelioides Golden crownbeard

non-native
Annual herb

Verbesina encelioides ssp. exauriculata Crownbeard, Golden crownbeard, Golden viguiera

non-native
Annual herb

Veronica americana American brooklime, American speedwell, Brooklime

native
Perennial herb

Veronica anagallis-aquatica Water speedwell

non-native
Perennial herb

Veronica peregrina Neckweed

native
Annual herb

Veronica peregrina ssp. xalapensis Hairy purslane speedwell, Neckweed, Purslane speedwell

native
Annual herb

Veronica serpyllifolia ssp. humifusa Bright blue speedwell, Brightblue speedwell, Sprawling speedwell

native
Perennial herb

Viburnum opulus European cranberrybush , Guelder-rose

non-native
Shrub

Vicia americana American vetch

native
Perennial herb, Vine

Vicia ludoviciana Louisiana vetch

native
Annual herb

Viguiera parishii Parish viguiera

native
Shrub

Vinca minor Common periwinkle

non-native
Perennial herb

Viola nephrophylla Leconte violet, Northern bog violet

native
Perennial herb

VIOLACEAE

Vitis arizonica Canyon grape

native
Vine, Shrub

VITACEAE

Vulpia octoflora Sixweeks grass

native
Annual grass

Wislizenia refracta Jack ass clover, Jackass clover, Spectacle fruit

native
Annual herb

Woodsia oregana Cliff fern, Oregon cliff fern, Oregon woodsia

native
Fern

WOODSIACEAE

Xanthium strumarium Rough cockleburr

native
Annual herb

Xylorhiza tortifolia Mojave woodyaster

native
Perennial herb

Xylorhiza tortifolia var. imberbis Mojave woodyaster

native
Perennial herb

Yabea microcarpa California hedge parsley, False carrot

native
Annual herb

Yucca baccata Banana yucca, Spanish bayonet

native
Shrub

Yucca brevifolia Joshua tree

native
Tree

Yucca brevifolia var. brevifolia Joshua tree

native
Tree

Yucca whipplei Chaparral yucca

native
Shrub