Perennials; long-lived; apomictic; caudex woody. Stems usually 1 per caudex branch, arising from center of rosette, slightly elevated on woody base or from near ground surface, 2-6 dm, pubescent proximally, trichomes usually subsessile, 2-or 3-rayed, rarely simple, 0.25-0.4 mm, glabrous distally. Basal leaves: blade oblanceolate, 2-6 mm wide, margins entire, ciliate proximally, trichomes to 0.7 mm, surfaces sparsely pubescent, trichomes subsessile to short-stalked, 2-5-rayed, 0.1-0.4 mm. Cauline leaves: 5-10, rarely concealing stem proximally; blade auricles 0.5-2 mm, surfaces of distalmost leaves glabrous. Racemes 5-16-flowered, usually unbranched. Fruiting pedicels divaricate-ascending, straight, 4-10 mm, glabrous. Flowers ascending at anthesis; sepals glabrous; petals purple, 6-8 × 1.5-2 mm, glabrous; pollen spheroid. Fruits divaricate-ascending, not appressed to rachis, not secund, straight, edges somewhat undulate (not parallel), 4-6.5(-7.6) cm × 2.5-3.5 mm; valves glabrous; ovules 24-54 per ovary; style 0.2-0.8 mm. Seeds uniseriate, 2.5-3.2 × 1.8-2.5 mm; wing distal, 0.3-1 mm wide.
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