Annual or biennial herb, 30–90 cm tall. Leaves lyrate, glabrous or sparsely hairy, more or less glaucous, terminal segment up to 20 cm long, lateral segments in 1–3 pairs. Inflorescences loose clusters, 10–36 × 8–10 mm; flowers regular, small, white to lilac. Silique oblong, pointed, 5–7 cm long. Seeds 1–6.

Commonly grown in backyard gardens in cool climates, under full sun. Propagated by seed sowing; harvested in the cool season (November–February).
Inflorescences and young fruits are eaten with nam prik (dipping sauce) or cooked in kaeng kae (mixed vegetable curry).