Climber, up to 16 m high, 10 cm diam., younger branches densely strigose, older ones with low cork-ridges, sometimes together with small orbicular lenticels. Leaves subcoriaceous, elliptic to oblong, ovate-oblong, or obovate-oblong, 7-12½(-20) by 2½-6(-10) cm, 6-9-nerved; slightly to distinctly acuminate at the apex, obtuse to rounded at the base; sparsely strigose, very soon gla-brescent, with slightly prominent midrib and nerves and faintly raised venation above; sparsely strigose, very soon glabrescent, with prominent nerves and faintly prominent venation beneath. Petiole 7-10(-14) mm. Inflorescences axillary, sometimes 2 together, 2-4 cm, 5-10(-15)-flowered. Pedicel 2-7 mm, thickened in fruit. Sepals 1 & 2 broadly ovate or triangular-ovate, 1.7-2.2 by 1.8-1.9 mm, 4 & 5 transverse-oval, 1.6-2 by 2.4-3 mm, rather densely strigose outside (hairs with 2 branches, up to 450 µ total length). Corolla 5 ½-6 mm, tube 1½ mm; midpetaline field 2.5-3 by 1.7-2 mm, densely appressed-hairy (hairs mainly with 2, few with 3-4 branches, up to 750 µ. total length); lobules 1.5-2 by 1.7-2.2 mm, with nearly invisible venation, entire or faintly crenulate at margin, coherent above midpetaline field for ½ mm. Stamens inserted 1-1½ mm above the corolla base; anther nearly sessile, 0.4-0.5 mm long, 0.7-0.8 mm broad, 0.5-0.6 mm thick, slightly retuse at apex and base. Ovary 1.2-1.5 by 0.8-1 mm, glabrous or with few appressed hairs in the basal, central, or the upper part; stigma conical, with 5 ridges in the lower part, smooth in upper part. Fruit probably little fleshy, obpyriform, 22 by 14 mm, scurfy outside, yellow (once noted) when fresh, greyish brown when dry. Cotyledons strongly folded.
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