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Psorothamnus spinosus  (A. Gray) Barneby
Smoke tree,   Smoketree
© 2021 Ron Vanderhoff
© 2020 Deborah Dozier
© 2021 Jonathan Froines
© 2023 Keir Morse
© 2022 Mike Russler
© 2022 Mike Russler
© 2023 David Strauch
© 2022 Mike Russler
© 2021 Jonathan Froines
© 2024 Ron Vanderhoff
© 2020 Susan McDougall
© 2022 Mike Russler
© 2022 Mike Russler
© 2020 Deborah Dozier
© 2020 Susan McDougall
© 2010 Neal Kramer
Psorothamnus spinosus is a tree or shrub that is native to California, and also found elsewhere in western North America.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
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Bloom Period
Genus: Psorothamnus
Family: Fabaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Creosote Bush Scrub
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTSDalea spinosa
OTHERPsorothamnus spinosa
POWOPsorodendron spinosum
Information about  Psorothamnus spinosus from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (PSSP3)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Range: P. Spinosus is native to the desert washes in the Colorado Desert in Southern California, the Sonoran Desert in western Arizona, and most of eastern Baja California state including several northern Gulf of California (Sea of Cortez) islands,[1] The tree is common in Joshua Tree National Park, where it is called the smoketree. (link added by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 03/29/2025).