Erect to narrowly erect shrub, 0.6-2 m tall, non-sprouting. Branchlets densely appressed-pubescent at flowering, rarely glabrescent. Leaves ±terete, slightly compressed, stellate in cross-section, deeply but openly grooved longitudinally, 2-9.5 cm long, 0.9-1.1 mm diam., glabrous; longitudinal veins 6 all around, at angles. Inflorescence a solitary axillary moderately elongate raceme, with 24-34 flowers; pedicels glabrous or sparsely hirsute. Perianth deep pink in bud, white at anthesis. Pistil 8.5-9.5 mm long; gland obtriangular. Fruit 1-3 per axil, shortly stalked, obliquely elliptic, slightly curved, 1.1-1.4 cm long, 8-10 mm wide, acuminate, scarcely beaked but with weak apiculum. Seed obliquely elliptic, 9-10.5 mm long, 4.5-5 mm wide; wing extending broadly down one side of body, where broadly notched at base, narrowly down other, where lacerated, sepia to dark brown with blackish brown streaks.