Rapeseed
Brassica napus L. [Brassicaceae]
Seiyou-abrana (セイヨウアブラナ, 西洋油菜)
Lifeform: biennial forb
Distribution: Native to north Europe and Sibera (exotic to Japan)
Habitat: ruderal
Varieties (Cultvars)
- var. napobrassica (L.) Peterm. [rutabaga]
Brassica napus in Hokkaido
[Left] a shoot. [Right] close-up of inflorescences. At a roadside, N24/E1, East Ward, Sapporo, on October 28 2009.