It is an annual or biennial plant that reaches a size of 30-60 (-80) cm, branched from the base, glabrous or sometimes sparsely hairy with simple hairs and branched. Basal leaves oblong-lanceolate, 15-50 mm long, 5-10 mm wide, cuneate, sessile, entire or irregularly toothed, upper leaves lanceolate or linear, sessile, sagittate-amplexicaules, entire or toothed. Inflorescences in clusters of 30-70 of flowers, up to 30 cm long in fruit. Flowers 3.5 mm in diameter, yellow; pedicels 10-20 (-25) mm long in fruit, rigid, ascending. Sepals 2.5 mm long. Petals 5 mm long. Fruit an obovoid siliqua, 7-9 mm long, 4-5 mm wide, apex rounded; glabrous, with a clear midrib; style 1.5-2 mm long with capitate stigma, seeds 9-10 in each locule, 1.5 mm long, ovoid, brown.2