Perennials; (caudex simple or branched, covered with persistent petiolar remains); glabrous or sparsely to densely pubescent, trichomes simple, sometimes subsetiform, (0.3-2 mm), these rarely mixed with fewer, short-stalked, forked ones. Stems simple or few to numerous from base (caudex), erect or ascending, unbranched, 0.5-2.5(-3.6) dm, (glabrous throughout or pubescent along proximal 1/2, trichomes simple). Basal leaves: petiole 0.3-2(-3.5) cm, (glabrous or ciliate); blade narrowly oblanceolate, spatulate, to obovate, 0.4-2(-3) cm × 3-10(-15) mm, margins entire, (ciliate or not), apex obtuse, surfaces glabrous or sparsely to densely pubescent, trichomes simple, rarely mixed with forked ones. Cauline leaves (1 or) 2-5(-7); blade linear, oblanceolate, oblong, or obovate, 0.5-2.2(-3) cm × 2-8 (-12) mm, base not auriculate, margins entire, (sometimes ciliate), apex obtuse, surfaces glabrous or, rarely, sparsely pubescent. Racemes simple, (dense or lax). Fruiting pedicels ascending to divaricate, (2-)5-20(-30) mm, (glabrous). Flowers: sepals (greenish) oblong, 2.5-3.5 × 1.2-1.5 mm, lateral pair saccate basally, (glabrous); petals white, oblanceolate to spatulate, (5-)6-8 × 2-4 mm, apex rounded; filaments 2.5-4 mm; anthers oblong, 0.6-1 mm. Fruits ascending to suberect, (not appressed to rachis), slightly torulose, sometimes slightly curved, (0.7-)1-2.5(-2.8) cm × 0.8-1.2(-1.5) mm; valves each with distinct midvein extending full length; ovules 10-24 per ovary; style 0.5-1.2(-2) mm, (slender). Seeds not winged, broadly ovate, 0.6-1.2(-1.5) × 0.5-1 mm. 2n = 32.
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