Calflora
Taxon  Report   10816    
Cirsium scariosum  Nutt.  var. congdonii  (R. J. Moore & Frankton) D. J. Keil
Elk thistle
Cirsium scariosum var. congdonii, a dicot, is a perennial herb that is native to California.
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
Family: Asteraceae  
Genus: Cirsium
Parent: Cirsium scariosum

Wetlands: Equally likely to occur in wetlands and non wetlands
Name Status:
Accepted by JEF
Alternate Names:
JEFCirsium tioganum
More information about  Cirsium scariosum var. congdonii
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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: 05/21/2022).