Annual, erect, prostrate or procumbent, 10-25 cm tall, strigose, herb; stem angled, scabrid, much branched from the base; leaves simple, 2.5-5 cm long, obovate, oblong or lanceolate, tapering at base, obtuse or at apex, entire or faintly serrulate along margins, strigose with scaberulous hairs, petiole reaching 2 cm in length; flowers pedicellate, violet or pink, in elongated, leafy racemes, bracts leafy, narrowly-oblong, sub-sessile; sepals 4, triangular or ovate, scabrid; petals 4, oblong, obovate, indistinctly clawed at base, rounded with mucronate apex, about 2 cm in length; stamens 10-12, filaments filiform, glabrous, subequal, free, staminodes present; style short, ovary 1-celled, many ovuled; capsule subsessile, 2-3 cm, linear, elongated, beaked, 2-valved siliqua, replum persistent; seeds many, larger smooth.