Brassica
cabbage, mustard
5 species
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Brassica juncea – brown mustard, leaf mustard
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Disturbed areas including fields, roadsides and wastelots.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Disturbed areas including fields, roadsides and wastelots.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Annual
Brassica napus – rapeseed
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Disturbed areas including fields, roadsides, and wastelots, where often escaped from cultivation.
Origin: Introduced from Eurasia
Flowers: April-June
Growth Duration: Annual, Biennial
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Disturbed areas including fields, roadsides, and wastelots, where often escaped from cultivation.
Origin: Introduced from Eurasia
Flowers: April-June
Growth Duration: Annual, Biennial
Brassica nigra – black mustard
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.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
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.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
Brassica oleracea – cabbage, wild cabbage
Distribution: Occurring west of the Cascades crest in Washington; Washington to California, also in scattered locations across North America.
Habitat: Disturbed areas including fields, roadsides, and wastelots, where escaped from cultivation.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Biennial, Perennial
Distribution: Occurring west of the Cascades crest in Washington; Washington to California, also in scattered locations across North America.
Habitat: Disturbed areas including fields, roadsides, and wastelots, where escaped from cultivation.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Biennial, Perennial
Brassica rapa – common mustard, field mustard, wild turnip
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots and other disturbed open areas.
Origin: Introduced from Europe
Flowers: April-Septemeber
Growth Duration: Annual, Biennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots and other disturbed open areas.
Origin: Introduced from Europe
Flowers: April-Septemeber
Growth Duration: Annual, Biennial
