Bull. Torrey Bot. Club 21: 475. 1894.
Herbs perennial, caulescent, rhizomes present, without tubers or tuberlike thickenings, stolons absent, bulbs absent. Aerial stems 1(–3) from base, erect, (10–)25–60(–100) cm, herbaceous, glabrate to sparsely or densely pilose or villous, hairs ± straight, spreading, septate and nonseptate. Leaves cauline, mostly on distal 1/2 of stem; stipules apparently absent; petiole 5–7.5 cm, hairs septate and nonseptate; leaflets 3, green, obcordate, 5–25(–30) mm, lobed 1/5 length, lobes apically usually rounded, rarely ± truncate, margins green or brownish purple, ciliate, surfaces glabrous, oxalate deposits absent. Inflorescences regular, irregular, or umbelliform cymes, 1–4(–8)-flowered; peduncles 7–12 cm. Flowers tristylous, above level of leaves; sepal apices without tubercles; petals yellow, with or without faint red lines proximally, 10–14 mm. Capsules ovoid to ovoid-oblong, 6–10 mm, sparsely puberulent. Seeds brown, transverse ridges brown. 2n = 28.
Phenology: Flowering May–Aug.
Habitat: Sandy woods, alluvial soils.
Elevation: 100–1100 m.
Ala., D.C., Ga., Ind., Ky., Md., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.