General:
Annual or biennial herb from a taproot; stems up to 1.5 m tall, leafy.

Leaves:
Glaucous, glabrous or sparsely hairy; basal leaves pinnately lobed, often clasping at the bases; stem leaves somewhat pinnately lobed, stalked.

Flowers:
In elongate racemes; flower stalks slender, spreading to ascending; petals golden to dull yellow, 10-14 mm long.

Fruits:
Siliques, ascending, 5-10 cm long; styles beaked, 7-11 mm long; seeds about 1.8 mm long, finely honeycombed. Brassicaceae

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia

Flower Colour:
Yellow

Blooming Period:
Early Spring

Fruit/Seed characteristics:
Colour: Black
Present over the Summer

Source:  The USDA

Synonyms and Alternate Names:
Brassica napobrassica (L.) P. Mill.
Brassica napus var. napobrassica (L.) Reichenb.