Calflora Taxon Report
Brassica nigra  (L.) W. D. J. Koch
Black mustard
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2021 Ron Vanderhoff
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2019 Ron Vanderhoff
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2019 Ron Vanderhoff
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2024 Ron Vanderhoff
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2022 Ron Vanderhoff
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2021 Cynthia Powell
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2022 Randy Huey
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2018 Brian Charles
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2019 Michelle Karle
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2022 Randy Huey
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2023 Ron Vanderhoff
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2020 Diane Etchison
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2025 Jennifer Mo
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2019 Ron Vanderhoff
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2015 Mary Merriman
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2021 Vivian Krug Cotton
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2020 Ron Vanderhoff
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2022 Nathan Dendinger
Brassica nigra is an annual herb that is not native to California.
Cal-IPC rating: moderate
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
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Bloom Period
Genus: Brassica
Family: Brassicaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot
Toxicity: Possible skin irritation from touching the underground parts or seed of this plant.
Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSSinapis nigra
POWOMutarda nigra
External links:

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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