Annual to biennial or perennial herbs. Leaves simple with the margin entire or with a few teeth, lower ones with the bases often spreading round the stem to form 'ears'. Flowers in yellow clusters, the sepals not having sacs at the base. Fruit a 1-seeded flat, winged brown to black pod.
Lower leaves 'eared' at the base ; fruit winged and consisting of a single segment.
30 species from the Mediterranean to C Asia.
Source: (1997). Brassicaceae. In: . Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.