also: あぶらなか
noun
Brassicaceae; mustard family
Scientific name for the plant family that includes mustard, cabbage, broccoli, and rapeseed. Used in botanical contexts.
アブラナ科の野菜にはブロッコリーやキャベツが含まれる。
Vegetables in the Brassicaceae family include broccoli and cabbage.
アブラナ is the rapeseed plant itself, while アブラナ科 is the botanical family name.
From アブラナ (rapeseed) + 科 (family, taxonomic rank). The kanji spelling 油菜科 is a direct kanji rendering of the same components.