Calflora Taxon Report
Brassica nigra (L.) W. D. J. Koch
Black mustard
Brassica nigra is an annual herb that is not native to California.
Cal-IPC rating: moderate

Alternate Names and Sources:
Sinapis nigraPLANTS
Mutarda nigraPOWO
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
DJJJASONAFMM

Bloom Period
redone or more occurrences
within a 7.5-minute quadrangle
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.


Accepted by: JEPS + PLANTS
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot

Possible skin irritation from touching the underground parts or seed of this plant.

Originated From Spain: Tradition has it the padres brought wild mustard seeds with them from Spain to the New World. Traveling from mission to mission, exploring California, the padres scattered the wild mustard seeds along the path to create a golden pathway home. When the explorers returned in spring the mustard plants flowered. The blooms were a bright mustard yellow color.

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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