Calflora
Taxon  Report   2121    
Cirsium ciliolatum  (L. F. Hend.) J. T. Howell
Ashland thistle
Cirsium ciliolatum, a dicot, is a perennial herb that is native to California, and also found in Oregon.
California Rare Plant Rank: 2B.1 (rare, threatened, or endangered in CA; common elsewhere).   CNDDB
State of California status: Endangered.
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
Observation Search
(10 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: Asteraceae  
Genus: Cirsium

Communities: Foothill Woodland, Valley Grassland
Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTSCirsium botrys
PLANTSCirsium howellii
More information about  Cirsium ciliolatum

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: 10/21/2021).