Calflora
Taxon  Report   11922    
Petrophytum caespitosum  (Nutt.) Rydb.  ssp. caespitosum 
Rock spiraea
Petrophytum caespitosum ssp. caespitosum, a dicot, is a 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

Bloom Period

Name Status:
Accepted by JEF
Alternate Names:
JEFPetrophyton caespitosum ssp. caespitosum
ICPNPetrophytum caespitosum var. caespitosum
More information about  Petrophytum caespitosum ssp. caespitosum
International Plants Names Index

Search efloras.org (Flora of North America)

Landscape information from Calscape

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Consortium of California Herbaria 2

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2021. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/19/2021).