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Taxon  Report  
Caulanthus lasiophyllus  (Hook. & Arn.) Payson
California mustard
Caulanthus lasiophyllus is an annual herb 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
Genus: Caulanthus
Family: Brassicaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Northern Oak Woodland, Southern Oak Woodland, Foothill Woodland, Valley Grassland
Name Status:
Accepted by JEF

Alternate Names:
JEFCaulanthus lasiophyllus var. inalienus
JEFCaulanthus lasiophyllus var. rigidus
JEFCaulanthus lasiophyllus var. utahensis
JEFGuillenia lasiophylla
JEFThelypodium lasiophyllum var. inalienum
Information about  Caulanthus lasiophyllus from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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[Wikipedia] Description & Range: Guillenia lasiophylla is a species of mustard plant known by the common names California mustard and slenderpod jewelflower. It is native to western North America from British Columbia to northern Mexico. It can be found in a variety of habitats such as desert flats, gravelly areas, limestone rocks, talus slopes, sandy banks, and grassy fields.[1] This is a thin-stemmed erect annual herb with long lobed, toothed leaves surrounding the base of the plant and smaller leaves lining the stem. The top of the plant is occupied by an inflorescence of flowers, each with widely spaced oval-shaped white or yellowish petals half a centimeter long. The fruit is a flat, narrow silique up to 7 centimeters long which hangs downward from the stem. Flowers bloom March to June, (contributed by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/18/2024).