Taxon  Report   11482    
Caulanthus flavescens  (Hook.) Payson
Yellow california mustard
Caulanthus flavescens, a dicot, is an annual herb that is native to California and and is endemic (limited) to California.
also called Guillenia flavescens
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: Caulanthus

Ultramafic affinity: 2.3; (weak indicator)

Communities: Valley Grassland

Name Status:
Accepted by JEF

PLANTS other name:
Guillenia flavescens

Alternate Names:
JEF: Guillenia flavescens
JEF: Streptanthus flavescens
JEF: Thelypodium flavescens
More information about  Caulanthus flavescens
Search (Flora of North America)

Landscape information from Calscape

Photos on   /   Google Images

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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Oct 21, 2020).