Perennials; long-lived; (ces-pitose); apomictic; caudex somewhat woody. Stems usually 1 per caudex branch, arising from center of rosette near ground surface, 1.5-3.5 dm, densely pubescent proximally, trichomes short-stalked, 5-10-rayed, to 0.7 mm, sparsely pubescent or glabrous distally. Basal leaves: blade narrowly oblanceolate, 1-3 mm wide, margins entire, ciliate proximally, trichomes to 0.7 mm, surfaces densely pubescent, trichomes short-stalked, 5-10-rayed, 0.08-0.25 mm. Cauline leaves: 4-9, not concealing stem; blade auricles 0.5-2 mm, surfaces of distalmost leaves pubescent. Racemes 8-25-flowered, usually unbranched. Fruiting pedicels ascending to divaricate-ascending, straight, 3-7 mm, pubescent, trichomes appressed, branched. Flowers ascending at anthesis; sepals pubescent; petals lavender to purple, 4-5 × ca. 1 mm, glabrous; pollen spheroid. Fruits divaricate-ascending, not appressed to rachis, not secund, straight or curved, edges parallel, 4-6.2 cm × 1.2-1.8 mm; valves glabrous; ovules 48-68 per ovary; style 0.1-0.2 mm. Seeds uniseriate, 1-1.5 × 0.8-1.2 mm; wing continuous, 0.1-0.15 mm wide.
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