Annual, 15-50 cm tall, branches pubescent, hairs silky. Leaf simple, c. 1.8-3.8 cm long, c. 10-20 mm broad, oblong or oblong-obovate, obtuse, oblique or subcordate at the base, pubescent on both sides, hairs silky, yellowish; sub-sessile; exstipulate. Inflorescence a 2-4-flowered raceme; peduncle longer than the leaf. Bract and bracteoles minute. Pedicel short. Calyx c. 3-4.5 mm long, densely pubescent, teeth linear. Corolla yellow, not exserted. Fruit c. 1.2-1.6 cm long, inflated, glabrous, 12-15-seeded.