Greek ra—quickly, phainomai—to appear, referring to the rapid germination and growth of the seedlings.
Annual or perennial herbs. Leaves at base lyrate, divided, smaller above. Flowers in terminal clusters, lateral sepals with small sacs; petals mostly dark veined; stamens 6. Fruit an indehiscent siliqua swollen or constricted between the seeds where it breaks into units; beak without seeds; valves ribbed.
Fruit without valves; petals with dark veins.
8 species from Europe and W and C Asia (Australia has 3 naturalised species).
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.