Plants densely cespitose, caudex branched; densely glandular or, rarely, eglandular. Stems (0.3-)0.5-1.5 (-2.6) dm. Leaves: petiole (0.5-)1.5-5(-7) cm, to 5 mm wide at base; blade obovate to spatulate or broadly oblanceolate to lanceolate, (1-)2-5(-8) cm × (7-)13-26 mm, base cuneate or attenuate, margins incised to coarsely dentate, apex acute. Racemes 3-15-flowered. Fruiting pedicels (proximalmost) 4-15(-20) mm. Flowers: sepals oblong, 5.5-9 × 1.5-2.5 mm; petals lavender to purple, (15-)16-20(-23) × 7-9 mm, claw 8-12 mm, apex emarginate; median filaments 4-6 mm; anthers 1.5-2 mm. Fruits narrowly oblong to linear-lanceolate, (2-)3-5 cm × 5-7 mm; valves densely glandular; ovules 10-16 per ovary; style 0.5-1.5 mm. Seeds 4-5 × 3.5-4.5 mm; wing 1-2 mm wide.
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