Herbs perennial, 10-45 cm tall, glabrous throughout except for apices of leaf lobes. Rhizomes much elongated, with a few bulbils, 3-8 mm wide. Stems simple, erect, straight, stout. Rhizomal leaves simple or trifoliolate; petiole 4-8 cm; leaf blade or terminal leaflet suborbicular or broadly cordate, to 1.5 cm in diam., base cordate, margin entire or obscurely 5-lobed, terminal leaflet with a petiolule to 7 mm. Cauline leaves 2-5, trifid or pinnatisect and with 2(or 3) lateral lobes on each side of midvein, lobes all decurrent, often 1-or 2-toothed, rarely entire; petiole 0.3-4 cm, winged, glabrous or ciliate, not auriculate or rarely with a small, toothlike, puberulent auricle to 0.3 mm; terminal lobe linear-lanceolate, 1.2-5 cm × 4-9 mm, base attenuate, margin entire, along distal half often minutely puberulent with stout trichomes rarely to 0.2 mm, apex acute; lateral lobes similar to terminal. Racemes 5-20-flowered. Fruiting pedicels ascending, 0.8-2.2 cm, straight, glabrous. Sepals ovate, 2.5-3 × 1.2-1.7 mm, glabrous, margin and apex membranous, lateral pair subsaccate. Petals white or lavender, broadly obovate or spatulate, 6-8 × 2.5-4 mm, apex rounded. Median filament pairs 2.5-4, slightly flattened; lateral pair 1.5-3 mm; anthers oblong, 0.8-1 mm. Ovules 8-14 per ovary. Fruit linear, 2-3 cm × ca. 1.5 mm; valves smooth, glabrous; style 1-5 mm. Seeds brown, oblong, 1.2-1.5 × ca. 0.7 mm, wingless. Fl. May-Jun, fr. Jun-Jul.
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