Stems twining; young branches terete, very shortly greyish appressed-pilose, adult ones angular, glabrescent. Leaves oblong to narrowly oblong with subparallel margins, 5-10 by 1½-3 cm; rounded at the base; attenuate towards the obtusish, mucronulate apex; chartaceous or thinly coriaceous, on both sides sparsely appressed-pilose in youth, soon glabrous; midrib prominent beneath; nerves 7-8 on either side hardly conspicuous; minor nervation inconspicuous; petiole 1.5-3 cm long, slender, shortly appressed-pilose. Inflorescences axillary, pilose like the branches; peduncles straight, patently erect, 2½-7 cm long, umbellately cymose at the apex with 2-5 branches. Pedicels 2-3 mm. Bracts minute, occasionally a foliaceous bract in the cyme. Sepals subequal, shortly appressed-pilose outside; two outer ones ovate-triangular, three inner ones broadly ovate-triangular, all attenuate towards an acutish apex, ca 3½-4 mm long; sepal 3 with one, sepals 4 and 5 with two glabrous margins. Corolla funnel-shaped, ca 15 mm long, deeply 5-lobed, white; tube ca 5-6 mm long, gradually widened towards the limb, glabrous; lobes oblong-ovate, ca 9 mm long; midpetaline bands sericeous outside, margins glabrous. Filaments glabrous. Ovary glabrous, 2-celled. Fruit ovoid, up to 15 mm long (mature?), nodding, reddish.