Rutabaga (/ˌruːtəˈbeɪɡə/; North American English) or swede (British English and some Commonwealth English) is a root vegetable, a form of Brassica napus (which also includes rapeseed). Other names include Swedish turnip, neep (Scots), and turnip (Scottish and Canadian English, Irish English, Cornish English and Manx English, as well as some dialects of English in Northern England and Australian English). However, elsewhere, the name turnip usually refers to the related white turnip.
The species B. napus originated as a hybrid between the cabbage (B. oleracea) and the turnip (B. rapa). Rutabaga roots are eaten as human food in various ways, and the leaves can be eaten as a leaf vegetable. The roots and tops are also used for livestock, fed directly in the winter or foraged in the field during the other seasons. Scotland, Northern and Western England, Wales, the Isle of Man, and Ireland had a tradition of carving the roots into Jack-o'-lanterns at Halloween.