Herbs perennial, (8-)10-25(-30) cm tall, pilose. Rhizomes stout, 0.5-1.5 cm, often with several stolons. Stems erect, simple, ridged, pilose, not flexuous. Basal leaves rosulate, 5-10 cm; petiole 1-3.5 cm, ciliate; terminal leaflet subreniform or orbicular, 4-8 × 4-10 mm, petiolule 1-3 mm, base rounded or cordate, margin entire or obscurely and obtusely 3-5-lobed; lateral leaflets 3-7 pairs, obovate or suborbicular, symmetric or not, slightly smaller than terminal lobe, entire or obscurely toothed, apex rounded. Cauline leaves 2-10, 1-5 cm; petiole (2-)4-10(-15) mm, ciliate, not auriculate at base; terminal leaflet linear, oblong, or lanceolate, 3-9 × 0.5-2 mm, sessile or with a petiolule to 1.5 mm; lateral leaflets 4-7 pairs, narrowly oblong to oblong-ovate, subequaling terminal leaflet, symmetric or not, pilose, base oblique or cuneate, proximal margin entire or 1-toothed, distal margin entire, apex acute. Racemes terminal, many flowered. Fruiting pedicels divaricate or ascending, (0.7-)1-2.2(-3) cm, slender, pilose. Sepals oblong or ovate, 3-4 × 1.5-2 mm, pilose, margin membranous, base of lateral pair saccate. Petals magenta-red, purple, or lavender, broadly obovate, 7-11 × 3-6 mm, cuneate into a clawlike base to 2 mm, apex rounded. Median filament pairs 4-5 mm, flattened below anther, to 1 mm wide; lateral pair 2.5-3.5 mm; anthers narrowly oblong, 0.9-1.2 mm. Ovules 10-16 per ovary. Fruit 1.6-2.5 cm × 1.2-1.8 mm; valves glabrous, smooth; style 1-2 mm. Seeds brown, broadly oblong, 1.2-1.5 × 0.9-1 mm, wingless. Fl. May-Jul.
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