Plants not scapose; sparsely to moderately pubescent through-out, trichomes subsessile or sessile, submalpighiaceous, 2-forked, and simple. Stems simple or few to several from base, erect, (usually unbranched), (0.4-)0.7-1.4(-1.8) dm. Basal leaves (without distinct petiole); blade linear to narrowly spatulate, 0.5-3 cm × 0.5-2(-3) mm, base attenuate or cuneate, margins dentate (with 1 or 2 teeth per side) or entire, apex obtuse, (surfaces glabrous or sparsely pubescent). Cauline leaves: 1-4 (each stem); (subsessile); blade similar to basal, smaller distally. ( Racemes not elongated in fruit.) Fruiting pedicels erect to divaricate, 1-4.5 mm. Flowers: sepals 1.8-2.8 × 1-1.4 mm (sometimes slightly saccate basally); petals white or purplish (especially claw), (broadly obovate or spatulate), 2.5-3.5(-4) × 1.3-2 mm; filaments 1.5-2 mm; anthers oblong, 0.4-0.6 mm. Fruits linear, more or less torulose, (straight or somewhat curved), (0.5-)0.9-1.2(-1.4) cm × 0.9-1.3 mm (uniform in width); valves glabrous or sparsely pubescent, trichomes simple and submalpighiaceous; septum margin not expanded, or not basally; ovules 20-28 per ovary; style 0.3-0.5 mm; stigma weakly 2-lobed to entire. Seeds uniseriate to weakly biseriate, oblong, 0.8-1 × 0.3-0.6 mm. 2n = 42.
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