Herbs perennial with branched caudex, (5-)9-40(-45) cm tall, densely glandular. Stems erect, simple below and usually above, hirsute with simple trichomes 1-2 mm, with glands to 0.1 mm. Basal leaves congested; petiole 4-10(-15) mm; leaf blade oblanceolate or oblong, 1-3(-4) cm × 2-4(-6) mm, sparsely to densely hirsute, margin entire or rarely dentate, apex acute or obtuse. Middle cauline leaves sessile, lanceolate or oblong, 1-3(-5) cm × 1-5(-8) mm, margin entire or dentate, apex acute or obtuse. Fruiting pedicels divaricate-ascending, 4-10(-18) mm, densely glandular. Sepals 5-7 × 1.3-1.7 mm, glabrous or sparsely hirsute. Petals purple, lavender, or white, broadly obovate, (1-)1.3-1.7 cm × 5-7 mm; claw 6-10 mm. Filaments 4-9 mm; anthers narrowly oblong, 1.6-2 mm. Fruit erect, (3-)4-7(-8) cm × 1.5-2 mm, sparsely glandular or glabrous; style 0.5-1.5 mm. Seeds 1.2-2 × 0.8-1.2 mm; wing distal, 0.2-0.4 mm wide. Fl. and fr. May-Jul.
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