Erect or ascending, sts scrambling herb up to 2-(3) dm. tall, from a stout to slender sts multicipital stock merging into a long taproot. Lower branches wiry decumbent then ascending; upper ± spreading, glab. to pilose. Lvs trifoliolate, on slender glab. to pilose petioles up to 2 cm. or more long; stipules 0 or occ. present and minute. Lflts rather pale green, obovate, emarginate, cuneately narrowed to base, 8-10-(20) mm. diam., us. glabrate, margins sts ciliate, sinus us. rather broad. Peduncles up to ± 15 cm. long, (1)-5-(8)-fld; pedicels up to ± 1 cm. long; bracteoles linear-lanceolate, minute. Fls ± 5 mm. diam.; sepals narrow-ovate, subacute, ± 6 mm. long; petals yellow, obovate to cuneiform, ± 8 mm. long. Capsule 10-15 mm. long, cylindric, clad in long hairs or glabrate; styles persistent. Seeds several to many, brown, glossy.