Bunias is a small genus of flowering plants in the mustard family, Brassicaceae (order Brassicales). The genus was described by Linnaeus and comprises a handful of accepted species — principally Bunias orientalis (Turkish rocket or warty cabbage) and Bunias erucago (crested warty cabbage or corn rocket). As members of the Brassicaceae, these are herbaceous plants bearing the characteristic four-petalled flowers of the cabbage family, along with distinctively warty or crested seed pods that set the genus apart from most of its relatives.
The genus is native to a broad arc stretching from the Mediterranean basin and southeastern Europe through the Caucasus, southern Russia, and into Siberia and northern China. Bunias orientalis is the most ecologically prominent species: a robust perennial or biennial herb that has spread well beyond its native range and is now classified as an invasive neophyte across much of Central and Northern Europe and parts of North America, where it colonises roadsides, waste ground, and disturbed habitats.
Both main species have a history of human use as food plants. The young leaves and stems of Bunias orientalis were consumed as a vegetable in France and elsewhere before the twentieth century, and the plant continues to be harvested as a wild edible — the leaves offering a mild cabbage-like flavour and the flower buds serving as a broccoli substitute.
Etymology
The genus name Bunias derives from the ancient Greek bounias (βουνιάς), a classical name applied to a type of turnip or similar crucifer; it was adopted by Linnaeus when he formally described the genus.
Distribution
Bunias is native from the Mediterranean region and southeastern Europe through Eastern Europe, the Caucasus, southern Russia, Siberia, and into northern China. Bunias orientalis has become widely naturalized as an invasive plant across Central and Northern Europe (including Britain, Scandinavia, and Central European Russia) and in parts of North America, particularly in disturbed and ruderal habitats.
Ecology
Species of Bunias favour disturbed habitats — roadsides, waste ground, field margins, and the edges of cultivated land. Bunias orientalis is especially opportunistic and thrives in both full sun and partial shade; it has been recorded growing vigorously among long grass and in woodland garden edges. Its tolerance of a wide range of soils and its vigorous spring growth contribute to its success as an invasive plant in regions outside its native range.
Cultural Uses
Bunias orientalis has a documented history of use as a food plant. The young leaves and stems were eaten raw or cooked as a vegetable, with a mild cabbage-like flavour, and were in regular use as food in France before 1920. Flower buds and young flowering stems can be used as a substitute for broccoli. The plant's early seasonal growth makes it a notable wild edible in regions where it grows.
