Monarch Nectar Plants Illustrated Plant List

Arctostaphylos peninsularis ssp. peninsularis

Arctostaphylos Xbenitoensis

native
Shrub

Arctostaphylos Xcampbelliae

native
Shrub

Arctostaphylos Xcinerea Del norte manzanita

native
Shrub

Arctostaphylos Xhelleri Hybrid manzanita

native
Shrub

Arctostaphylos Xlaxiflora

native
Shrub

Arctostaphylos Xmedia Hybrid manzanita

native
Tree, Shrub

Ceanothus connivens Trailing buckbrush

native
Shrub

Ceanothus Xarcuatus

native
Shrub

Ceanothus Xflexilis Flexible ceanothus

native
Shrub

Ceanothus Xlobbianus

native
Shrub

Ceanothus Xlorenzenii Whitethorn x tobacco brush

native
Tree, Shrub

Ceanothus Xmendocinensis Mendocino ceanothus

native
Shrub

Ceanothus Xrugosus

native
Shrub

Ceanothus Xserrulatus Cascade lake ceanothus

native
Shrub

Ceanothus Xvanrensselaeri

native
Shrub

Ceanothus Xveitchianus

native
Shrub

Cleomella arborea Bladderpod

native
Shrub

Salix matsudana Corkscrew willow

non-native
Tree

Salix Xehrhartiana

non-native
Shrub, Tree

Salix Xpendulina Wisconsin weeping willow

non-native
Tree

Salix Xrubens Hybrid crack willow

non-native
Shrub, Tree

Trifolium piorkowskii Piorkowski's clover

• rare native
Annual herb

Trifolium stellatum Star clover

non-native
Annual herb

Trifolium suffocatum Suffocated clover

non-native
Perennial herb

Arctostaphylos auriculata Mount Diablo manzanita

• rare native
Shrub

Arctostaphylos canescens Hoary manzanita

native
Shrub

Arctostaphylos canescens ssp. canescens Hoary manzanita

native
Shrub

Arctostaphylos canescens ssp. sonomensis Rincon manzanita, Sonoma manzanita

native
Shrub

Arctostaphylos canescens ssp. sonomensis

Arctostaphylos crustacea Brittle leaf manzanita

native
Shrub

Arctostaphylos crustacea ssp. crinita Crinite manzanita

native
Shrub

Arctostaphylos crustacea ssp. crustacea Brittle leaf manzanita

native
Shrub

Arctostaphylos crustacea ssp. rosei Rose's manzanita

native
Shrub

Arctostaphylos crustacea ssp. subcordata Santa cruz island manzanita

• rare native
Shrub

Arctostaphylos crustacea ssp. subcordata

Arctostaphylos gabilanensis Gabilan mountains manzanita

• rare native
Shrub

Arctostaphylos glandulosa Eastwood manzanita, Eastwood's manzanita

native
Shrub

Arctostaphylos glandulosa ssp. adamsii Adams' manzanita

native
Shrub

Arctostaphylos glandulosa ssp. cushingiana Cushing manzanita

native
Shrub

Arctostaphylos glandulosa ssp. cushingiana

Arctostaphylos glandulosa ssp. glandulosa Eastwood manzanita, Eastwood's manzanita

native
Shrub

Arctostaphylos glandulosa ssp. glandulosa

Arctostaphylos glandulosa ssp. howellii Howell's manzanita

native
Shrub

Arctostaphylos glandulosa ssp. leucophylla Eastwood manzanita

native
Shrub

Arctostaphylos glandulosa ssp. leucophylla

Arctostaphylos glandulosa ssp. mollis Eastwood's manzanita, Transverse range manzanita

native
Shrub

Arctostaphylos glauca Big berry manzanita, Bigberry manzanita

native
Tree, Shrub

Arctostaphylos hookeri Hooker's manzanita, Raven's manzanita

native
Tree, Shrub

Arctostaphylos hookeri ssp. hookeri Hooker's manzanita, Monterey manzanita

• rare native
Shrub

Arctostaphylos manzanita Common manzanita

native
Shrub

Arctostaphylos manzanita ssp. laevigata Contra costa manzanita

• rare native
Shrub

Arctostaphylos manzanita ssp. manzanita Common Manzanita

native
Shrub

Arctostaphylos manzanita ssp. roofii Roof's manzanita

native
Shrub

Arctostaphylos manzanita ssp. wieslanderi Wieslander's manzanita

native
Shrub

Arctostaphylos manzanita ssp. wieslanderi

Arctostaphylos montaraensis Montara manzanita

• rare native
Shrub

Arctostaphylos nevadensis Pine mat manzanita, Pinemat manzanita

native
Shrub

Arctostaphylos nevadensis ssp. knightii Knight's manzanita

native
Shrub

Arctostaphylos nevadensis ssp. nevadensis Pine-mat manzanita

native
Shrub

Arctostaphylos nevadensis ssp. nevadensis

Arctostaphylos nummularia Glossy leaved manzanita, Glossyleaf manzanita, Shatterberry

native
Shrub

Arctostaphylos nummularia ssp. mendocinoensis Pygmy manzanita

• rare native
Shrub

Arctostaphylos nummularia ssp. mendocinoensis

Arctostaphylos nummularia ssp. nummularia Shatterberry

native
Shrub

Arctostaphylos nummularia ssp. nummularia

Arctostaphylos otayensis Otay manzanita

• rare native
Shrub

Arctostaphylos patula Green leaf manzanita, Greenleaf manzanita

native
Shrub

Arctostaphylos pungens Mexican manzanita, Pointleaf manzanita

native
Tree, Shrub

Arctostaphylos regismontana Kings mountain manzanita, Kings mtn. manzanita

• rare native
Shrub

Arctostaphylos sensitiva Glossyleaf manzanita

native
Shrub

Arctostaphylos silvicola Bonny doon manzanita, Silverleaf manzanita

• rare native
Shrub

Arctostaphylos stanfordiana Stanford's manzanita

native
Tree, Shrub

Arctostaphylos stanfordiana ssp. stanfordiana Stanford manzanita, Stanford's manzanita

native
Tree, Shrub

Arctostaphylos stanfordiana ssp. stanfordiana

Arctostaphylos tomentosa Woolly leaf manzanita, Woollyleaf manzanita

native
Shrub

Arctostaphylos tomentosa ssp. bracteosa Bristly twig manzanita, Woollyleaf manzanita

native
Shrub

Arctostaphylos tomentosa ssp. daciticola Dacite manzanita

• rare native
Shrub

Arctostaphylos tomentosa ssp. daciticola

Arctostaphylos tomentosa ssp. hebeclada Woolly leaf manzanita

native
Shrub

Arctostaphylos tomentosa ssp. tomentosa Woolly leaf manzanita, Woollyleaf manzanita

native
Shrub

Arctostaphylos virgata Bolinas manzanita, Marin manzanita

• rare native
Shrub

Arctostaphylos viscida Sticky whiteleaf manzanita

native
Tree, Shrub

Arctostaphylos viscida ssp. mariposa Mariposa manzanita

native
Tree, Shrub

Arctostaphylos viscida ssp. pulchella Sticky whiteleaf manzanita, White leaf manzanita

native
Tree, Shrub

Arctostaphylos viscida ssp. viscida Smooth white leaf manzanita, Sticky whiteleaf manzanita

native
Tree, Shrub

Asclepias curassavica Blood flower, Bloodflower, tropical milkweed

non-native
Perennial herb

Asclepias subulata Ajamete, Rush milkweed, Skeleton milkweed

native
Perennial herb

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

native
Shrub

Baccharis sarothroides Desertbroom baccharis

native
Shrub

Ceanothus ferrisiae Coyote ceanothus

• rare native
Shrub

Ceanothus maritimus Maritime ceanothus, San luis obispo ceanothus

• rare native
Shrub

Ceanothus otayensis Otay mountain ceanothus

• rare native
Shrub

Ceanothus verrucosus Barranca brush, White coast ceanothus, Wart-Stemmed Ceanothus

• rare native
Shrub

Cleomella arborea var. arborea

native
Annual herb

Erigeron glaucus Seaside daisy, Seaside fleabane

native
Perennial herb

Trifolium subterraneum Sub clover, Subterranean clover

non-native
Annual herb

Arctostaphylos bakeri Baker's manzanita

native
Shrub

Arctostaphylos bakeri ssp. bakeri Baker's manzanita

• rare native
Shrub

Arctostaphylos bakeri ssp. sublaevis The cedars manzanita

• rare native
Shrub

Arctostaphylos catalinae Santa catalina island manzanita

• rare native
Shrub

Arctostaphylos columbiana Hairy manzanita, Redwood manzanita

native
Tree, Shrub

Arctostaphylos confertiflora Santa rosa island manzanita

• rare native
Shrub

Arctostaphylos densiflora Vine hill manzanita

• rare native
Shrub

Arctostaphylos franciscana Franciscan manzanita

• rare native
Shrub

Arctostaphylos hookeri ssp. hearstiorum Hearst's manzanita

• rare native
Tree, Shrub

Arctostaphylos hooveri Hoover's manzanita

• rare native
Shrub

Arctostaphylos imbricata San bruno mountain manzanita, San bruno mtn. manzanita

• rare native
Shrub

Arctostaphylos mewukka ssp. truei True's manzanita

• rare native
Shrub

Arctostaphylos montana Mt. tamalpais manzanita

native
Shrub

Arctostaphylos montana ssp. montana Mt. Tamalpais manzanita

• rare native
Shrub

Arctostaphylos montana ssp. ravenii Presidio manzanita

• rare native
Shrub

Arctostaphylos nissenana Eldorado manzanita, Nissenan manzanita

• rare native
Shrub

Arctostaphylos nortensis Del norte manzanita

• rare native
Shrub

Arctostaphylos obispoensis Bishop manzanita, Serpentine manzanita

• rare native
Shrub

Arctostaphylos ohloneana Ohlone manzanita

• rare native
Shrub

Arctostaphylos osoensis Oso manzanita

• rare native
Shrub

Arctostaphylos pacifica Pacific manzanita

• rare native
Shrub

Arctostaphylos parryana ssp. tumescens Parry manzanita

• rare native
Shrub

Arctostaphylos pumila Dune manzanita, Sandmat manzanita

• rare native
Shrub

Arctostaphylos stanfordiana ssp. decumbens Rincon manzanita

• rare native
Shrub

Arctostaphylos stanfordiana ssp. decumbens

Arctostaphylos stanfordiana ssp. raichei Raiche's manzanita

• rare native
Shrub

Arctostaphylos stanfordiana ssp. raichei

Berberis aquifolium Mountain grape, Mountaingrape, Oregon grape

native
Shrub

Berberis aquifolium var. aquifolium Oregon grape, Piper's barberry

native
Shrub

Berberis aquifolium var. dictyota Jepson's oregon grape, Shining netvein barberry

native
Shrub

Ceanothus arboreus Catalina ceanothus, Feltleaf ceanothus, Island ceanothus

native
Shrub

Ceanothus confusus Rincon ridge ceanothus

• rare native
Shrub

Ceanothus cuneatus Buck brush, Wedgeleaf ceanothus

native
Shrub

Ceanothus cuneatus var. cuneatus Buck brush, Buckbrush

native
Shrub

Ceanothus cuneatus var. fascicularis Sand buck brush, Sedgeleaf buckbrush

• rare native
Shrub

Ceanothus cuneatus var. ramulosus Buck brush

native
Shrub

Ceanothus dentatus Dwarf ceanothus, Sandscrub ceanothus

native
Shrub

Ceanothus divergens Calistoga ceanothus

• rare native
Shrub

Ceanothus gloriosus var. porrectus Inverness ceanothus, Mt. vision ceanothus

• rare native
Shrub

Ceanothus greggii Desert ceanothus

native
Shrub

Ceanothus megacarpus Big pod ceanothus, Bigpod ceanothus

native
Shrub

Ceanothus megacarpus var. megacarpus Big pod ceanothus, Bigpod ceanothus

native
Shrub

Ceanothus ophiochilus Vail lake ceanothus

• rare native
Shrub

Ceanothus sonomensis Sonoma ceanothus

• rare native
Shrub

Dipterostemon capitatus Blue dicks

native
Perennial herb

Dipterostemon capitatus ssp. capitatus Blue dicks

native
Perennial herb

Dipterostemon capitatus ssp. lacuna-vernalis Vernal pool blue dicks

native
Perennial herb

Dipterostemon capitatus ssp. lacuna-vernalis

Encelia californica Bush sunflower, California brittlebush, California encelia

native
Shrub

Erysimum capitatum var. lompocense San luis obispo wallflower

• rare native
Perennial herb

Prunus ilicifolia Holly leaf cherry, Holly leaved cherry, Hollyleaf cherry

native
Tree, Shrub

Prunus ilicifolia ssp. ilicifolia Holly leaf cherry, Hollyleaf cherry

native
Tree, Shrub

Rhus integrifolia Lemonade berry, Lemonade sumac

native
Shrub

ANACARDIACEAE

Ribes aureum var. gracillimum Golden currant

native
Shrub

GROSSULARIACEAE

Salix alba White willow

non-native
Shrub, Tree

Salix babylonica Weeping willow

non-native
Tree

Salix drummondiana Drummond's willow

native
Shrub

Salix exigua Narrow leaved willow, Narrowleaf willow, Sandbar willow

native
Tree, Shrub

Salix exigua var. exigua Narrowleaf willow

native
Tree, Shrub

Salix exigua var. hindsiana 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 lemmonii Lemmon's willow

native
Shrub

Salix prolixa Mackenzie's willow

native
Tree, Shrub

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

native
Tree, Shrub

Salix Xsepulcralis Weeping willow

non-native
Tree

Trifolium alexandrinum Egyptian clover

non-native
Annual herb

Trifolium barbigerum Bearded clover

native
Annual herb

Trifolium depauperatum Cowbag clover, Dwarf sack clover, Pale sack clover

native
Annual herb

Trifolium depauperatum var. amplectens Balloon sack clover, Pale bladder clover, Pale sack clover

native
Annual herb

Trifolium depauperatum var. depauperatum Cowbag clover, Dwarf bladder clover, Dwarf sack clover

native
Annual herb

Trifolium depauperatum var. depauperatum

Trifolium depauperatum var. truncatum Dwarf sack clover

native
Annual herb

Trifolium hirtum Rose clover

• invasive non-native
Annual herb

Trifolium incarnatum Crimson clover

non-native
Annual herb

Abronia latifolia Coastal sand verbena, Sand verbena, Yellow sand verbena

native
Perennial herb

NYCTAGINACEAE

Arctostaphylos crustacea ssp. eastwoodiana Eastwood's brittle-leaf manzanita

• rare native
Shrub

Arctostaphylos crustacea ssp. eastwoodiana

Arctostaphylos glandulosa ssp. gabrielensis San gabriel manzanita

• rare native
Shrub

Arctostaphylos glandulosa ssp. gabrielensis

Arctostaphylos glutinosa Schreiber's manzanita

• rare native
Shrub

Arctostaphylos hispidula Howell's manzanita

• rare native
Shrub

Arctostaphylos manzanita ssp. elegans Konocti manzanita

• rare native
Shrub

Arctostaphylos parryana Parry manzanita

native
Shrub

Arctostaphylos parryana ssp. desertica Desert manzanita

native
Shrub

Arctostaphylos parryana ssp. parryana Parry manzanita

native
Shrub

Arctostaphylos uva-ursi Bearberry manzanita, Kinnikinnick

native
Shrub

Asclepias albicans White stemmed milkweed, Whitestem milkweed

native
Shrub

Asclepias cordifolia Heart leaf milkweed, Heartleaf milkweed, Purple milkweed

native
Perennial herb

Berberis aquifolium var. repens Creeping oregon grape, Dwarf mahonia

native
Shrub

Ceanothus crassifolius Hoary leaved ceanothus, Hoaryleaf ceanothus

native
Shrub

Ceanothus crassifolius var. crassifolius Hoary leaved ceanothus

native
Shrub

Ceanothus crassifolius var. crassifolius

Ceanothus crassifolius var. planus Hoary leaved ceanothus

native
Shrub

Ceanothus decornutus Nicasio ceanothus

• rare native
Shrub

Ceanothus foliosus Wavy leaved ceanothus, Wavyleaf ceanothus

native
Shrub

Ceanothus foliosus var. medius La cuesta ceanothus, Wavyleaf buckbrush

native
Shrub

Ceanothus foliosus var. viejasensis Viejas Mountain ceanothus

• rare native
Shrub

Ceanothus foliosus var. vineatus Vine hill ceanothus

• rare native
Shrub

Ceanothus gloriosus Glory mat, Point reyes ceanothus

native
Shrub

Ceanothus gloriosus var. exaltatus Glory brush, Point reyes ceanothus

• rare native
Shrub

Ceanothus gloriosus var. gloriosus Point reyes ceanothus

• rare native
Shrub

Ceanothus hearstiorum Hearst ranch buckbrush, Hearst's ceanothus

• rare native
Shrub

Ceanothus jepsonii Jepson ceanothus, Musk brush

native
Shrub

Ceanothus leucodermis Chaparral whitethorn

native
Shrub

Ceanothus masonii Bolinas ceanothus, Mason's ceanothus

• rare native
Shrub

Ceanothus oliganthus Hairy ceanothus

native
Shrub

Ceanothus oliganthus var. oliganthus Hairy ceanothus

native
Shrub

Ceanothus oliganthus var. orcuttii San diego hairy ceanothus

native
Shrub

Ceanothus oliganthus var. sorediatus Jim brush

native
Shrub

Ceanothus pendletonensis Pendleton ceanothus

• rare native
Shrub

Ceanothus purpureus Hollyleaf ceanothus, Napa ceanothus

• rare native
Shrub

Ceanothus rigidus Monterey ceanothus

• rare native
Shrub

Ceanothus spinosus Greenbark ceanothus, Redheart

native
Tree, Shrub

Ceanothus thyrsiflorus Blueblossom

native
Tree, Shrub

Ceanothus thyrsiflorus var. griseus Carmel ceanothus

native
Shrub

Ceanothus thyrsiflorus var. thyrsiflorus Blue blossom

native
Tree, Shrub

Ceanothus thyrsiflorus var. thyrsiflorus

Ceanothus tomentosus Woolly leaf ceanothus, Woolyleaf ceanothus

native
Shrub

Ceanothus velutinus Tobacco brush, snowbrush

native
Tree, Shrub

Dipterostemon capitatus ssp. pauciflorus Few flowered blue dicks

native

Dipterostemon capitatus ssp. pauciflorus

Erysimum capitatum Sanddune wallflower, Western wallflower

native
Perennial herb

Erysimum capitatum var. angustatum Contra costa wallflower

• rare native
Perennial herb

Erysimum capitatum var. purshii Pursh's wallflower

native
Perennial herb

Justicia californica Beloperone, Chuparosa

native
Shrub

ACANTHACEAE

Phacelia tanacetifolia Lacy phacelia, Tansy leafed phacelia

native
Annual herb

HYDROPHYLLACEAE

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

native
Tree, Shrub

Salix breweri Brewer's willow, Serpentine willow

native
Shrub

Salix geyeriana Geyer's willow

native
Shrub

Salix lasiandra Pacific willow

native
Tree

Salix lasiandra var. caudata Shining willow

native
Shrub

Salix lasiandra var. lasiandra Pacific willow

native
Tree

Salix ligulifolia Strapleaf willow, Tongueleaf willow

native
Shrub

Salix lutea Yellow willow

native
Shrub

Salix purpurea Purpleosier willow

non-native
Tree

Salix sitchensis Coulter willow, Sitka willow

native
Tree, Shrub

Salvia mellifera Black sage

native
Shrub

Trichostema lanatum Woolly bluecurls

native
Shrub

Trifolium albopurpureum Indian clover, Rancheria clover

native
Annual herb

Trifolium dichotomum Branched indian clover

native
Annual herb

Trifolium glomeratum Clustered clover

non-native
Annual herb

Trifolium jokerstii Jim's clover, Butte County Golden Clover

• rare native
Annual herb

Trifolium longipes Long stalked clover, Longstalk clover, Summer clover

native
Perennial herb

Trifolium longipes ssp. atrorubens Longstalk clover

native
Perennial herb

Trifolium longipes ssp. elmeri Elmer's clover

native
Perennial herb

Trifolium longipes ssp. hansenii Hansen's clover

native
Perennial herb

Trifolium longipes ssp. multipedunculatum Longstalk clover

native
Perennial herb

Trifolium longipes ssp. multipedunculatum

Trifolium longipes ssp. oreganum Oregon clover

native
Perennial herb

Trifolium longipes ssp. shastense Longstalk clover

native
Perennial herb

Trifolium macraei Chilean clover, Macrae's clover

native
Annual herb

Trifolium palmeri Southern island clover

• rare native
Annual herb

Trifolium variegatum Variegated clover, White tipped clover, Whitetip clover

native
Annual herb

Trifolium variegatum var. geminiflorum Small-flowered variegated clover

native
Annual herb

Trifolium variegatum var. variegatum Variegated clover

native
Annual herb

Arctostaphylos malloryi Balaklala manzanita, Mallory's manzanita

• rare native
Shrub

Arctostaphylos patula ssp. gankinii Gankin's greenleaf manzanita

native
Shrub

Arctostaphylos patula ssp. patula Greenleaf manzanita

native
Shrub

Asclepias californica California milkweed

native
Perennial herb

Asclepias cryptoceras Dwarf milkweed, Humboldt mountains milkweed, Pallid milkweed

native
Perennial herb

Asclepias erosa Desert milkweed

native
Perennial herb

Asclepias linaria Needle leaf milkweed, Pineneedle milkweed

non-native
Perennial herb, Shrub

Asclepias vestita Milkweed, Woolly milkweed

native
Perennial herb

Ceanothus arcuatus Arching ceanothus

native
Tree, Shrub

Ceanothus cyaneus Lakeside ceanothus, San diego buckbrush, San diego ceanothus

• rare native
Shrub

Ceanothus foliosus var. foliosus Wavy leaved ceanothus, Wavyleaf ceanothus

native
Shrub

Ceanothus impressus Santa barbara ceanothus

native
Shrub

Ceanothus impressus var. impressus Santa barbara ceanothus

native
Shrub

Ceanothus impressus var. nipomensis Nipomo mesa ceanothus, Santa barbara ceanothus

native
Shrub

Ceanothus lemmonii Lemmon's ceanothus

native
Shrub

Ceanothus palmeri Palmer ceanothus, Palmer's ceanothus

native
Shrub

Ceanothus papillosus warty-leaf ceanothus, Wartleaf ceanothus

native
Shrub

Ceanothus parryi Parry ceanothus

native
Shrub

Ceanothus pauciflorus Mojave ceanothus

native
Shrub

Ceanothus perplexans Cupped leaf ceanothus

native
Shrub

Ceanothus prostratus Mahala mats, Pinemat

native
Shrub

Ceanothus prostratus var. occidentalis Mahala mats

native
Shrub

Ceanothus prostratus var. prostratus Mahala mat

native
Shrub

Ceanothus pumilus Dwarf ceanothus, Siskiyou mat

native
Shrub

Ceanothus roderickii Pine hill buckbrush, Pine hill ceanothus

• rare native
Shrub

Ceanothus sanguineus Red stem ceanothus, Redstem ceanothus

native
Shrub

Erysimum capitatum var. capitatum Sanddune wallflower

native
Perennial herb

Erythranthe guttata Seep monkey flower, Yellow monkey flower

native
Annual, Perennial herb (rhizomatous)

PHRYMACEAE

Grindelia camporum Common gumplant, Great valley gumweed, Gum plant

native
Perennial herb

Prunus virginiana Chokecherry

native
Tree, Shrub

Rhus ovata Sugar bush, Sugar sumac

native
Shrub

ANACARDIACEAE

Ribes aureum Golden currant

native
Shrub

GROSSULARIACEAE

Ribes aureum var. aureum Golden currant

native
Shrub

GROSSULARIACEAE

Salix delnortensis Del norte willow

• rare native
Shrub

Salix hookeriana Coastal willow, Dune willow

native
Tree, Shrub

Salix orestera Sierra willow

native
Shrub

Salix tracyi Tracy's willow

native
Tree, Shrub

Salvia leucophylla San luis purple sage

native
Shrub

Solidago confinis Southern goldenrod

native
Perennial herb

Trifolium amoenum Showy indian clover

• rare native
Annual herb

Trifolium angustifolium Narrow leaved clover, Narrowleaf crimson clover

non-native
Annual herb

Trifolium appendiculatum Large variegated clover

native
Annual herb

Trifolium bifidum Notch leaf clover, Notchleaf clover, Pinole clover

native
Annual herb

Trifolium bifidum var. bifidum Pinole clover

native
Annual herb

Trifolium bifidum var. decipiens Notch leaf clover

native
Annual herb

Trifolium buckwestiorum Santa cruz clover

• rare native
Annual herb

Trifolium campestre Field clover, Low hop clover

non-native
Annual herb

Trifolium ciliolatum Foothill clover, Tree clover

native
Annual herb

Trifolium columbinum Olive clover

native
Annual herb

Trifolium dubium Shamrock clover, Little Hop Clover, Suckling clover

non-native
Annual herb

Trifolium fucatum Bull clover, Sour clover

native
Annual herb

Trifolium gracilentum Graceful clover, Pin point clover, Pinpoint clover

native
Annual herb

Trifolium grayi Gray's clover

native
Annual herb

Trifolium hydrophilum Saline clover

• rare native
Annual herb

Trifolium macrocephalum Big headed clover, Largehead clover

native
Perennial herb

Trifolium microcephalum Hairy clover, Small headed clover

native
Annual herb

Trifolium microdon Thimble clover, Valparaiso clover

native
Annual herb

Trifolium obtusiflorum Clammy clover, Creek clover

native
Annual herb

Trifolium oliganthum Few flowered clover, Fewflower clover, Minitomcat clover

native
Annual herb

Trifolium polyodon Pacific grove clover

• rare native
Annual herb

Trifolium resupinatum Reversed clover

non-native
Annual herb

Trifolium tomentosum Woolly clover

non-native
Annual herb

Trifolium trichocalyx Monterey clover

• rare native
Annual herb

Trifolium willdenovii Tomcat clover

native
Annual herb

Verbena lasiostachys Common verbena, Vervain, Western verbena

native
Perennial herb

VERBENACEAE

Aesculus californica Buckeye, California buckeye, California horse chestnut

native
Tree

SAPINDACEAE

Agastache urticifolia Horse mint, Horsemint giant hyssop, Nettle leaf giant hyssop

native
Perennial herb

Arctostaphylos klamathensis Klamath manzanita

• rare native
Shrub

Arctostaphylos mewukka Indian manzanita

native
Shrub

Arctostaphylos mewukka ssp. mewukka Indian manzanita

native
Shrub

Arctostaphylos pringlei Pringle manzanita

native
Shrub

Arctostaphylos pringlei ssp. drupacea Pink bracted manzanita, Pinkbracted manzanita

native
Shrub

Asclepias asperula Spider milkweed

native
Perennial herb

Asclepias asperula ssp. asperula Antelope horns, Spider milkweed

• rare native
Perennial herb

Asclepias latifolia Broadleaf milkweed

native
Shrub

Asclepias nyctaginifolia Mojave milkweed

• rare native
Perennial herb

Asclepias solanoana Serpentine milkweed, Solanoa

• rare native
Perennial herb

Baccharis salicifolia ssp. salicifolia Mule fat

native
Shrub

Ceanothus cordulatus Mountain whitethorn

native
Shrub

Ceanothus diversifolius Pinemat

native
Shrub

Ceanothus fresnensis Fresno ceanothus, Fresno mat

• rare native
Shrub

Ceanothus incanus Coast whitethorn

native
Shrub

Ceanothus integerrimus Deer brush, Deerbrush

native
Shrub

Ceanothus integerrimus var. integerrimus Deer brush

native
Shrub

Ceanothus integerrimus var. integerrimus

Ceanothus integerrimus var. macrothyrsus Deerbrush

native
Shrub

Ceanothus integerrimus var. macrothyrsus

Ceanothus pinetorum Coville ceanothus, Kern ceanothus

• rare native
Shrub

Chilopsis linearis Desert willow

native
Shrub

BIGNONIACEAE

Chilopsis linearis ssp. arcuata Desert willow

native
Shrub

BIGNONIACEAE

Eriodictyon angustifolium Narrow leaved yerba santa, Narrowleaf yerba santa

• rare native
Shrub

NAMACEAE

Eriogonum umbellatum var. humistratum Mt. Eddy buckwheat

• rare native
Perennial herb

Grindelia stricta Coastal gumweed, Gumweed, Oregon gumweed

native
Perennial herb

Grindelia stricta var. angustifolia Marsh gumplant, Oregon gumweed

native
Perennial herb

Grindelia stricta var. platyphylla Gumplant, Gumweed, Oregon gumweed

native
Perennial herb

Grindelia stricta var. stricta Coastal gum plant, Oregon gumweed

native
Perennial herb

Philadelphus lewisii Lewis' mock orange, Mock orange, Wild mock orange

native
Shrub

HYDRANGEACEAE

Prunus ilicifolia ssp. lyonii Catalina cherry, Hollyleaf cherry, Island cherry

native
Tree

Salix bebbiana Bebb willow, Gray willow

• rare native
Tree

Salix boothii Booth's willow

native
Shrub

Salix eastwoodiae Mountain willow

native
Shrub

Salix melanopsis Dusky willow

native
Tree, Shrub

Salix planifolia Diamondleaf willow

native
Shrub

Salvia clevelandii Cleveland sage, Fragrant sage

native
Shrub

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

native
Shrub

Salvia dorrii var. dorrii Dorr's sage

native
Shrub

Salvia dorrii var. incana Desert sage, Fleshy sage, Great basin sage

• rare native
Shrub

Salvia dorrii var. pilosa Hairy sage

native
Shrub

Solidago lepida Western goldenrod

native
Perennial herb (rhizomatous)

Solidago lepida var. salebrosa Western goldenrod

• rare native
Perennial herb (rhizomatous)

Solidago spathulata Dune goldenrod

native
Perennial herb

Symphoricarpos albus var. laevigatus Common snowberry, Upright snowberry

native
Shrub

CAPRIFOLIACEAE

Trifolium beckwithii Beckwith's clover

native
Perennial herb

Trifolium breweri Brewer's clover, Forest clover

native
Perennial herb

Trifolium cernuum Nodding clover

non-native
Annual herb

Trifolium cyathiferum Bowl clover, Cup clover

native
Annual herb

Trifolium dedeckerae Dedecker's clover

• rare native
Perennial herb

Trifolium eriocephalum Woollyhead clover

native
Perennial herb

Trifolium eriocephalum ssp. cusickii Cusick's clover

native
Perennial herb

Trifolium eriocephalum ssp. eriocephalum Woollyhead clover

native
Perennial herb

Trifolium eriocephalum ssp. eriocephalum

Trifolium fragiferum Strawberry clover

non-native
Perennial herb

Trifolium gymnocarpon Hollyleaf clover

native
Perennial herb

Trifolium gymnocarpon ssp. plummerae Plummer's clover

• rare native
Perennial herb

Trifolium hybridum Alsike clover

non-native
Perennial herb

Trifolium kingii King's clover

native
Perennial herb

Trifolium lemmonii Lemmon's clover

• rare native
Perennial herb

Trifolium pratense Red clover

non-native
Perennial herb

Trifolium retusum Teasel clover

non-native
Annual herb

Trifolium striatum Knotted clover

non-native
Annual herb

Trifolium vesiculosum Arrowleaf clover

non-native
Annual herb

Trifolium wormskioldii Coast clover, Cow clover, Cows clover

native
Perennial herb

Verbena lasiostachys var. lasiostachys Vervain, Western vervain

native
Perennial herb

VERBENACEAE

Verbena lasiostachys var. scabrida Robust vervain

native
Perennial herb

VERBENACEAE

Anaphalis margaritacea Pearly everlasting

native
Perennial herb

Apocynum cannabinum Indian hemp, Indianhemp dogbane, HEMP DOGBANE

native
Perennial herb

Asclepias eriocarpa Indian milkweed, Kotolo milkweed, Woolypod milkweed

native
Perennial herb

Asclepias fascicularis Narrow leaf milkweed

native
Perennial herb

Asclepias speciosa Showy milkweed

native
Perennial herb

Ceanothus parvifolius Little leaf ceanothus, Littleleaf ceanothus

native
Shrub

Ceanothus thyrsiflorus var. obispoensis San Luis Obispo ceanothus

• rare native
Shrub

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

native
Perennial herb, Vine

RANUNCULACEAE

Eriogonum umbellatum var. ahartii Ahart's buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. glaberrimum Green buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat, Alpine sulphur flower buckwheat

• rare native
Perennial herb

Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower

native
Annual herb

Helianthus bolanderi Bolander's sunflower, Serpentine sunflower

native
Annual, Perennial herb

Heteromeles arbutifolia Christmas berry, Toyon

native
Shrub

Lobelia cardinalis Cardinalflower

native
Perennial herb

Lobelia cardinalis var. pseudosplendens Cardinal flower, Scarlet lobelia

native
Perennial herb

Monardella odoratissima Desert mint, Mountain monardella, Coyote-Mint

native
Perennial herb

Monardella odoratissima ssp. glauca Mountain mint, Mountain pennyroyal

native
Perennial herb

Monardella odoratissima ssp. odoratissima Mountain monardella

native
Perennial herb

Monardella odoratissima ssp. odoratissima

Monardella odoratissima ssp. pallida Pale mountain monardella, Pallid mountain monardella

native
Perennial herb

Monardella villosa Coyote mint

native
Perennial herb

Monardella villosa ssp. franciscana San francisco coyote mint

native
Perennial herb

Monardella villosa ssp. obispoensis San luis obispo coyote mint

native
Perennial herb

Monardella villosa ssp. villosa Coyote mint

native
Perennial herb

Salix brachycarpa Shortfruit willow

native
Shrub

Salix brachycarpa var. brachycarpa Shortfruit willow

• rare native
Shrub

Salix jepsonii Jepson's willow

native
Shrub

Salix sessilifolia Northern sandbar willow, Northwest sandbar willow, Northwest willow

native
Shrub

Symphoricarpos albus Common snowberry

native
Shrub

CAPRIFOLIACEAE

Trifolium andersonii Anderson's clover, Fiveleaf clover

native
Perennial herb

Trifolium andersonii ssp. andersonii Anderson's clover

• rare native
Perennial herb

Trifolium andersonii ssp. beatleyae Beatley's five-leaved clover

native
Perennial herb

Trifolium bolanderi Bolander's clover, Parasol clover

• rare native
Perennial herb

Trifolium howellii Canyon clover, Howell's clover

• rare native
Perennial herb

Trifolium monanthum Carpet clover, Mountain carpet clover

native
Perennial herb

Trifolium monanthum ssp. grantianum Grant's carpet clover

native
Perennial herb

Trifolium monanthum ssp. monanthum Carpet clover

native
Perennial herb

Trifolium monanthum ssp. parvum Small carpet clover

native
Perennial herb

Trifolium monanthum ssp. tenerum Delicate carpet clover

native
Perennial herb

Trifolium productum Productive clover

native
Perennial herb

Trifolium repens White clover

non-native
Perennial herb

Trifolium siskiyouense Siskiyou clover

• rare native
Perennial herb

Asclepias tuberosa Butterfly milkweed

non-native
Shrub

Asclepias tuberosa ssp. interior Butterfly milkweed

non-native
Shrub

Dasiphora fruticosa Shrubby cinquefoil

native
Shrub

Ericameria nauseosa Rubber rabbitbrush

native
Shrub

Ericameria nauseosa var. bernardina San bernardino rubber rabbitbrush

native
Shrub

Ericameria nauseosa var. ceruminosa Sharp bracted rabbitbrush

native
Shrub

Ericameria nauseosa var. hololeuca Common rabbitbrush

native
Shrub

Ericameria nauseosa var. leiosperma Common rabbitbrush

native
Shrub

Ericameria nauseosa var. mohavensis Mojave rabbitbrush

native
Shrub

Ericameria nauseosa var. oreophila Rubber rabbitbrush

native
Shrub

Ericameria nauseosa var. speciosa Showy Rabbitbrush

native
Shrub

Ericameria nauseosa var. washoensis Rubber rabbitbrush

native
Shrub

Eriogonum umbellatum var. bahiiforme Sulphur buckwheat, Sulphur flower buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. juniporinum Juniper buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. lautum Scott valley buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. torreyanum Donner pass buckwheat

• rare native
Perennial herb

Lobelia dunnii Dunn's lobelia

native
Perennial herb

Lobelia dunnii var. serrata Dunn's lobelia

native
Perennial herb

Penstemon speciosus Royal beardtongue, Royal penstemon, Showy penstemon

native
Perennial herb

PLANTAGINACEAE

Salix nivalis Snow willow

• rare native
Shrub

Salix petrophila Alpine willow

native
Tree, Shrub

Solidago elongata West coast canada goldenrod

native
Perennial herb

Solidago spectabilis Nevada goldenrod, Showy goldenrod

native
Perennial herb

Solidago velutina ssp. californica California goldenrod, Oreja de liebre

native
Perennial herb

Symphyotrichum chilense California aster, Pacific aster

native
Perennial herb

Trifolium arvense Rabbitfoot clover

non-native
Annual herb

Trifolium aureum Golden clover, Hop clover

non-native
Annual herb

Bidens cernua Nodding beggartick

native
Perennial herb

Bidens laevis Bur marigold

native
Perennial herb

Cephalanthus occidentalis Common buttonbush

native
Shrub

RUBIACEAE

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

Chrysothamnus viscidiflorus ssp. puberulus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. puberulus

Chrysothamnus viscidiflorus ssp. viscidiflorus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. viscidiflorus

Eriogonum umbellatum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. argus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. canifolium Sulphur buckwheat

native
Perennial herb

Eriogonum umbellatum var. chlorothamnus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. covillei Coville's sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. dichrocephalum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. dichrocephalum

Eriogonum umbellatum var. dumosum Many flowered sulfur flower

native
Perennial herb

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

native
Perennial herb

Eriogonum umbellatum var. goodmanii Goodman's buckwheat, Serpentine sulphur buckwheat

native
Perennial herb

Eriogonum umbellatum var. modocense Sulphur flower buckwheat, Modoc Sulphur Flower

native
Perennial herb

Eriogonum umbellatum var. munzii Munz's buckwheat

native
Perennial herb

Eriogonum umbellatum var. nelsoniorum Sulphur buckwheat

native
Perennial herb

Eriogonum umbellatum var. nevadense Nevada buckwheat, Sierra sulfur flower, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. polyanthum Many flowered buckwheat, Sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. smallianum Sulphur buckwheat

native
Perennial herb

Eriogonum umbellatum var. speciosum Showy sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

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

native
Perennial herb

Eriogonum umbellatum var. versicolor Sulphur flower buckwheat, Sulphur flowered buckwheat

native
Perennial herb

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

native
Perennial herb

Solidago canadensis Canada goldenrod

native
Perennial herb

Solidago multiradiata Northern goldenrod, Rocky mountain goldenrod

native
Perennial herb

Solidago velutina Threenerve goldenrod

native
Perennial herb

Solidago velutina ssp. sparsiflora Great basin goldenrod

native
Perennial herb

Baccharis pilularis Coyote brush, Dwarf chaparral broom

native
Shrub

Solidago guiradonis Guirado goldenrod, Guirado's goldenrod

• rare native
Perennial herb (rhizomatous)

Baccharis pilularis ssp. consanguinea Coyote brush

native
Shrub

Baccharis pilularis ssp. pilularis Coyote brush

native
Shrub

Cleomella arborea var. globosa

native
Annual herb

Solidago altissima Canada goldenrod

native
Perennial herb

Solidago altissima ssp. altissima Late goldenrod

non-native
Perennial herb

Arctostaphylos andersonii Heartleaf manzanita, Santa cruz manzanita

• rare native
Shrub

Arctostaphylos edmundsii Little sur manzanita

• rare native
Shrub

Arctostaphylos montereyensis Monterey manzanita, Toro manzanita

• rare native
Shrub

Arctostaphylos myrtifolia Ione manzanita

• rare native
Shrub

Arctostaphylos pechoensis Pecho manzanita

• rare native
Shrub

Arctostaphylos purissima La purisima manzanita, La purissima manzanita

• rare native
Shrub

Arctostaphylos rudis Sand mesa manzanita, Shagbark manzanita

• rare native
Shrub

Cleomella arborea var. angustata

native
Annual herb

Arctostaphylos crustacea ssp. insulicola Island manzanita

• rare native
Shrub

Arctostaphylos crustacea ssp. insulicola

Arctostaphylos cruzensis Arroyo de la cruz manzanita, La cruz manzanita

• rare native
Shrub

Arctostaphylos glandulosa ssp. crassifolia Costa baja manzanita, Del mar manzanita

• rare native
Shrub

Arctostaphylos glandulosa ssp. crassifolia

Arctostaphylos insularis Island manzanita

native
Shrub

Arctostaphylos luciana Santa lucia manzanita

• rare native
Shrub

Arctostaphylos manzanita ssp. glaucescens White leaf common manzanita, Whiteleaf manzanita

native
Shrub

Arctostaphylos manzanita ssp. glaucescens

Arctostaphylos morroensis Morro manzanita

• rare native
Shrub

Arctostaphylos pajaroensis Pajaro manzanita

• rare native
Shrub

Arctostaphylos pallida Alameda manzanita, Oakland hills manzanita, Pallid manzanita

• rare native
Shrub

Arctostaphylos pilosula La panza manzanita, Santa Margarita manzanita

• rare native
Shrub

Arctostaphylos purissima ssp. globosa Globose manzanita

native
Shrub

Arctostaphylos purissima ssp. purissima La Purisima manzanita

native
Shrub

Arctostaphylos rainbowensis Rainbow manzanita

• rare native
Shrub

Arctostaphylos refugioensis Refugio manzanita

• rare native
Shrub

Arctostaphylos viridissima Mcminn's manzanita, White haired manzanita

• rare native
Shrub

Asclepias fruticosa African milkweed

non-native
Perennial herb

Ceanothus megacarpus var. insularis Island bigpod ceanothus, Island ceanothus

• rare native
Shrub