Herbs, 6-20 cm tall. Rhizome long creeping, 1-3 mm in diam.; internodes sometimes to 20 cm. Leaves basal and cauline, trifoliolate; leaflets ovate or suborbicular, 1.3-2.5 × 1.2-2.5 cm, abaxially sparsely puberulent, adaxially glabrous, base deeply cordate with rounded lobes nearly touching, those of lateral leaflets conspicuously unequal, margin coarsely serrate, apex acute or shortly acuminate. Flowering stem with 1 trifoliolate leaf. Inflorescence simple, racemose, few flowered (ca. 3-flowered), 4-7 cm; rachis and pedicels glandular, pubescent. Pedicel 1-2.3 cm; bracts ovate, 0.8-1.4 mm. Outer sepals caducous, narrowly obovate, ca. 4 × 3 mm; inner sepals white, broadly lanceolate, ca. 12 × 5 mm, apex obtuse. Petals declined, white, horn-shaped, longer than inner sepals, blunt spurs ca. 1.7 cm. Stamens 4; anthers ca. 2.5 mm, valved. Pistil ca. 6 mm; style 2-2.8 mm. Fruit unknown. Fl. Mar-Apr, fr. unknown.
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