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Taxon  Report  
Pleiacanthus spinosus  (Nutt.) Rydb.
Thorn skeletonweed
Pleiacanthus spinosus is a perennial herb that is native to California, and also found elsewhere in western North America.
also called Stephanomeria spinosa
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
Genus: Pleiacanthus
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Sagebrush Scrub, Yellow Pine Forest, Pinyon-Juniper Woodland
Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSLygodesmia spinosa
JEF + PLANTSStephanomeria spinosa
More information about  Pleiacanthus spinosus

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]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 10/06/2022).