Brassica napus

Annual or biennial.

Cotyledons: Kidney-shaped and shallowly notched.

Stems: Up to 1.5 m (59.05 inch) tall, herbaceous, branching, erect, reddish-purple below, greenish-red above, glabrous, from large thickened taproot to +10 cm (+3.93 inch) in diameter.

Leaves: Alternate, glabrous. Lowest leaves up +25 cm (+9.84 inch) long, lyrate-pinnatifid, with small prickles above and below on leaf tissue.
Middle and upper cauline leaves clasping, glabrous, glaucous, lanceolate.
Margins crenate with prickles caused by veins extending beyond leaf tissue.

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