Perennials; short-lived; apomictic; caudex usually not woody. Stems usually 1 per caudex branch, arising from center of rosette near ground surface, 0.7-3 dm, densely pubescent proximally, trichomes short-stalked, 2-6-rayed, 0.06-0.25 mm, glabrous distally. Basal leaves: blade narrowly oblanceolate, 1-3 mm wide, margins entire, ciliate near petiole base, trichomes (simple and spurred), to 0.4 mm, surfaces sparsely to densely pubescent, trichomes short-stalked, 4-8-rayed, 0.04-0.15 mm. Cauline leaves: 5-9, rarely concealing stem proximally; blade auricles to 0.3-1 mm, surfaces of distalmost leaves glabrous. Racemes 5-13-flowered, usually unbranched. Fruiting pedicels divaricate-ascending, straight, 3-8 mm, glabrous. Flowers ascending at anthesis; sepals pubescent; petals lavender, 4-5 × 0.5-0.8 mm, glabrous; pollen spheroid. Fruits divaricate-ascending, not appressed to rachis, not secund, straight, edges parallel, (2.5-)3-4.7 cm × 1.2-1.7 mm; valves glabrous; ovules 78-112 per ovary; style 0.1-0.5 mm. Seeds uniseriate to sub-biseriate, 1.1-1.4 × 0.7-0.9 mm; wing continuous, 0.05-0.12 mm wide.
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