|Origin||Beta vulgaris subsp. maritima|
It is a variety of Beta vulgaris, the same species that contains the red beet (beetroot) and sugar beet varieties. The cultivar group is called the Crassa Group. Their large white, yellow or orange-yellow swollen roots were developed in the 18th century as a fodder crop for feeding livestock.
- Wright, Clifford A. 2001. Mediterranean Vegetables: a cook's ABC of vegetables and their preparation in Spain, France, Italy, Greece, Turkey, the Middle East, and north Africa with more than 200 authentic recipes for the home cook Boston, Massachusetts: Harvard Common Press, page 52, ISBN 1-55832-196-9
- Raynbird, Hugh (1851) "On the Cultivation of Mangold-wurzel or Field-beet" Transactions of the Highland and Agricultural Society of Scotland; New Series pp. 534-38, page 534
- "Sorting Beta names". Multilingual Multiscript Plant Name Database. The University of Melbourne. Archived from the original on 2013-04-15. Retrieved 2016-08-17.