Annual or biennial, with sparse, stiff hairs towards base. Stems erect or ascending, 10–60 cm high. Basal leaves petiolate, variable, toothed or with triangular lobes; stem leaves uncommon. Sepals 3–5 mm long, half spreading; petals 4–9 mm long, lemon-yellow, abruptly clawed; ovary sessile. Fruit spreading, 2–4 cm long (including beak), 1–3 mm wide, not on stalk extending beyond end of pedicel; valves slightly constricted between seeds; beak c. 2 mm long, narrowly conical; pedicel 4–60 mm long; seeds c. 1 mm long, yellow-brown. Flowers Feb.–Apr., Aug.–Oct.
LoM, MuM, Wim, GleP, Brid, VVP, RobP, MuF, GipP, OtP, WaP, DunT, OtR. Also naturalised WA, SA, NSW, Tas., the Americas, Southern Africa, New Zealand. Native to southern and central Europe. Weed of disturbed sites.
Entwisle, T.J. (1996). Brassicaceae. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae, pp. 399–459. Inkata Press, Melbourne.
