Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas at low elevations.
Flowers: April-June
Origin: Introduced from Europe
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bees, flies, butterflies
[none provided]
PNW Herbaria: Specimen records of Brassica nigra in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Brassica nigra checklist entry
OregonFlora: Brassica nigra information
E-Flora BC: Brassica nigra atlas page
CalPhotos: Brassica nigra photos