Herbs perennial, caulescent, rhizomes or stolons usually present, bulb absent. Aerial stems usually 1 from base, usually erect, rarely leaning and decumbent, <not rooting at nodes>, (5–)8–30(–35) cm, herbaceous, glabrous, glabrate, or sparsely to moderately strigose, sometimes sparsely villous proximally, <hairs slightly curved, antrorse, nonseptate>. Leaves basal and cauline; stipules rudimentary; petiole 2–5 cm, <hairs nonseptate>; leaflets 3, green, obcordate, 4–11 mm, lobed 1/5–1/3 length, abaxial surface sparsely strigose, adaxial surface glabrous, oxalate deposits absent. Inflorescences umbelliform cymes, 1–2(–3)-flowered; peduncles (2–)3–8 cm. Flowers tristylous, <at or slightly above level of leaves>; sepal apices without tubercles, <surfaces glabrous>; petals yellow, sometimes with faint red lines proximally, 4–8 mm. Capsules angular-cylindric, abruptly tapering to apex, 7–10 mm, glabrous or glabrate to sparsely puberulent, <hairs short, sometimes only along angles>. <Seeds brown, transverse ridges brown>. 2n = 16.
Home