Glab. to glabrate herb up to 3 cm. or more tall; stock often branched above; lvs radical or crowded on arrested branches, somewhat fleshy, up to c. 5 cm. long; lamina up to 2 cm. long, obovate to obovate-spathulate, entire to irregularly pinnatifidly lobed, often sparsely ciliate, narrowed into petiole up to c. 3 cm. long. Fls solitary; pedicels spreading to suberect, rather stout, elongating in fr. to c. 3 cm. Sepals ovate-oblong to oblong, c. 1·5 mm. long, or sts almost = petals; petals narrow- spathulate, clawed, c. 3-4 mm. long. Siliques erect, up to 2.5 cm. × 1·5 mm.; style c. 0·5 mm. long. Seeds c. 20.

(2) South Id plants. Lvs glabrous, rarely sparsely ciliate, coriaceous, simple and entire, sometimes lobed at base; cauline lvs usually 0. Infl. loosely corymbose to racemose, rarely sessile. Sepals glabrous; pedicel (15)-30-40 mm long; silique (10)-15-30 mm long.