Densely caespitose perennial; caudex few-branched, compact, with persistent, thickened leaves; basal leaves imbricate, undifferentiated into blade and petiole, linear-lanceolate, 5-8 mm long, 1-1.5 mm wide, surfaces glabrous or rarely pilose, margins entire, ciliate; stems unbranched or branched distally, 3-7 cm long, glabrous throughout or rarely pilose; stem leaves 6-8, sessile, blades linear-oblong, 5-8 mm long, 1-2 mm wide, margins entire, ciliate; racemes 10-26-flowered, elongated in fruit; sepals ovate, 1.7-2.7 mm long, glabrous or rarely pilose; petals yellow, oblong-oblanceolate, 4-6 mm long, 1.5-2 mm wide; fruits narrowly lanceolate, twisted 1/2 turn or plane, flattened, 7-10 mm long, 1.3-1.6 mm wide. Flowers late June through July.