Herbs, twining or prostrate. Stems rooting at nodes or internodes, spreading hirsute to glabrous. Petiole 1-5(-20) mm; leaf blade linear, oblong-lanceolate, ovate-oblong, or ovate, 1.9-6 X 0.5-2.5 cm, sparsely appressed hirsute or glabrous, base truncate, rounded, ± auriculate to hastate, margin entire, apex obtuse, acute or slightly emarginate and mucronulate. Inflorescences 1-4(-8)-flowered; peduncle filiform, 1.5-3.5(-7.5) cm, glabrous or sparsely pubescent basally; bracts persistent, ovate, 1-2 mm, glabrous. Pedicel 5-10 mm, glabrous. Sepals elliptic or elliptic-oblong, unequal; outer 2 sepals 3-5 mm; inner 3 ca. 6 mm, margin purplish, apex obtuse. Corolla pale yellow or whitish, broadly funnelform, 0.9-1.1(-1.8) cm, midpetaline bands dark veined, glabrous outside. Stamens included; filaments dilated and pubescent basally. Ovary glabrous. Capsule broadly ovoid to globose, 6-7 mm, thinly papery, glabrous. Seeds brownish black, trigonous-ellipsoid, ca. 3 mm, glabrous or sparsely floccose at margin and hilum.
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A herb. It is twining or lies along the ground. The stems form roots at the nodes. The leaves are narrow and 2-6 cm long by 0.5-2.5 cm wide. There are 1-4 flowers in a group.
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