Herbs perennial, 11-30 cm tall, sparsely pilose at least on leaves. Rhizomes stout, to 7 cm in diam., with a few stolons. Stems stout, thickest at base, erect, simple. Basal leaves fleshy, simple; petiole (3.5-)6-15(-20) cm, glabrous; leaf blade reniform, (1-)1.5-3 × (1.5-)3-6 cm, always wider than long, glabrous, base broadly cordate, margin repand, mucronate at vein endings, apex rounded. Cauline leaves 2-5, simple, petiolate or rarely uppermost subsessile; petiole (0.3-)1-3.5 cm, base not auriculate or rarely with minute auricles to 0.3 × 0.3 mm; leaf blade reniform, 1-2.5 × 1.5-4 cm, base cordate, margin dentate-repand and mucronate at vein endings. Flowering pedicels 1-2 cm, divaricate, straight, glabrous, stout. Sepals ovate or oblong, 2.5-4 × 1.5-2 mm, glabrous, margin membranous, base of lateral pair saccate. Petals violet, deep magenta, or rarely pale lavender or white, obovate, 7-10 × 3.5-5 mm. Median filament pairs 3.5-5 mm, lateral pair 2-3.5 mm; anthers oblong, 0.9-1.1 mm. Fruit and seeds not seen. Fl. Mar-Apr.