Liana, younger branches rather densely appressed-hairy, older ones with distinct, generally broad, longitudinal cork-ridges. Leaves ovate or obovate to oblong, (5-)7-12(-15) by (2¼-)3-6(-7½) cm, (4-)5-8-nerved; rather sparsely appressed-hairy, soon glabrescent, with slightly sunken midrib, faintly prominent to faintly sunken nerves, and faintly prominent to indistinct venation above; rather sparsely appressed-hairy, soon glabrescent, with slightly to faintly prominent nerves and venation beneath. Petiole 8-17 mm. Inflorescences terminal, downward passing into axillary, sometimes 2 together, (1½-)3-8 (-12) cm, (5-)10-30(-100)-flowered. Pedicel 1½-4 mm. Sepals 1 & 2 oval to orbicular, 2-4 by 2-3.2 mm, 4 & 5 transverse-oval, 1.8-3.2 by 2.2-4 mm, rather densely appressed-hairy outside (hairs 2-branched, up to 900 µ total length). Corolla white, 6-9½ mm, tube 2-3 mm; midpetaline field 1.8-4 by 1.3-2.8 mm, rather densely appressed-hairy (hairs 2-branched, up to 1400 µ total length); lobules 2½-4½ by 1½-3 mm, rather thick, with faintly visible venation, entire to irregularly cre-nulate at margin, coherent above the midpetaline field for up to 1 mm. Stamens inserted ½-1 mm above the corolla-base; filament 1.5-1.8 mm long, 0.3-0.7 mm broad at the base; anther 1-2 mm long, 0.4-0.8 mm broad, 0.4-0.6 mm thick, acuminate (sterile acumen 0.3-0.7 mm) at apex, cordate at base. Ovary 0.8-1.7 by 0.8-1.5 mm, glabrous; stigma conical, with 5 distinct ridges. Fruit ellipsoid, 18 by 15 mm, glabrous, smooth in the lower, scurfy in the upper part, or scurfy over the whole surface. Cotyledons strongly folded.
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