Rapeseed (Brassica napus subsp. napus) is a bright-yellow flowering member of the family Brassicaceae (mustard or cabbage family), cultivated mainly for its oil-rich seed, which naturally contains appreciable amounts of erucic acid. Canola are a group of rapeseed cultivars which were bred to have very low levels of erucic acid and are especially prized for use for human and animal food. Rapeseed is the third-largest source of vegetable oil and second-largest source of protein meal in the world.

油菜（Brassica napus subsp。napus）是十字花科（芥菜或卷心菜科）的亮黄色开花成员，主要是由于其富含油的种子而种植的，该种子自然含有大量的芥酸。双低油菜籽是一组油菜籽栽培品种，其芥酸含量非常低，尤其是用于人类和动物食品。油菜籽是世界上第三大植物油来源和第二大蛋白质粉来源。