Plants perennial, caulescent, not stoloniferous, 2–22 cm. Stems 1–3, decumbent, ascending, or erect, ca. 1/2 subterranean, glabrous or usually puberulent, on single, short, vertical, deep-seated caudex. Leaves basal and cauline; basal: 1–6 per caudex, palmately compound, ± 2-ternate or 3-ternate, leaflets 3; stipules adnate to petiole, forming 2 linear-lanceolate wings, unlobed, margins entire, apex of each wing free, acute; petiole 2–10.5 cm, usually puberulent; blade ovate to deltate, 2.4–5 × 3.5–4.5 cm, base tapered, ultimate leaflets dissected into oblong, elliptic, lanceolate, or oblanceolate lobes 1–7 mm wide, lobe margins entire, usually ciliate, apex acute to obtuse, mucronulate, surfaces usually puberulent, seldom glabrous, abaxial surface without prominent vein parallel to each margin; cauline similar to basal except: stipules linear, apex acuminate; petiole 2–5.7 cm, usually puberulent, rarely glabrous; blade 1–2.7 × 1.5–3 cm. Peduncles 1.5–10.6(–15.7) cm, usually puberulent, seldom glabrous. Flowers: sepals lanceolate, margins eciliate, auricles 0.1–1 mm; petals dark reddish violet on both surfaces, lower 3 usually lilac, rarely white or whitish, lateral 2 bearded, with yellow patch basally, dark reddish violet-veined, lowest 10–22 mm, with yellow patch, dark reddish violet-veined, spur whitish or yellowish, tinged purple, gibbous, 0.5–2 mm; style head bearded; cleistogamous flowers absent. Capsules oblong-ovoid, 7–12 mm, glabrous. Seeds brown, 3–4 mm. 2n = 24.
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