Short hairs not well differentiated from long hairs, absent or sparse throughout. Stems 0.4–1.7 dm. Basal leaves ternate, (1.5–)2–6(–8) cm; petiole 0.8–5(–7) cm, long hairs sparse to abundant, usually ± spreading, sometimes ascending, 0.5–1 mm, weak to ± stiff, glands sparse to common; leaflets 3, central obovate-cuneate, (0.2–)0.5–1(–1.5) × 0.2–1 cm, scarcely petiolulate, distal 1/2–2/3 of margins evenly incised 1/3–1/2 to midvein, teeth (1–)2–3(–4) per side, surfaces green, long hairs sparse to common, 0.5–1 mm, glands sparse to abundant. Inflorescences 1–4-flowered. Pedicels 0.5–2(–4) cm. Flowers: epicalyx bractlets ?sometimes paired?, narrowly elliptic, 1.5–2(–2.5) × 0.5–1 mm ?1/2–3/4 as long as sepals?; hypanthium 2–3 mm diam.; sepals 2.5–4 mm, apex broadly acute; petals ± paler abaxially, bright yellow adaxially, ± obcordate to broadly obovate, (2–)3–4 × 2–3 mm; filaments 1–1.5 mm, anthers 0.3–0.5 mm; carpels 10–25, styles 1–1.5 mm. Achenes 1.3 mm, smooth to lightly rugose.
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