- a brassicaceous plant, Brassica napobrassica, having a yellow- or white-fleshed, edible tuber.
- the edible tuber, a variety of turnip.
- a Eurasian plant, Brassica napus (or B. napobrassica), cultivated for its bulbous edible root, which is used as a vegetable and as cattle fodder: family Brassicaceae (crucifers)
- the root of this plant
