Scandent shrub or woody climber, 3 m high or more. Branchlets terete, armed by 5 rows of c. 1 mm long recurved prickles, placed on darker coloured lines, young parts of branches, inflorescence, and juvenile leaves densely ferrugineously hispid, not glandular. Leaves evenly distributed along the stems; Stipules filiform, c. 5 mm, early caducous. Inflorescences consisting of pedunculate spikes, 1-4 together in the axils of the distal leaves; Flowers sessile, white, bisexual, pentamerous. Stamens numerous, c. 4 mm, anthers with a stipitate terminal gland. Ovary stipi- tate, c. 1 mm, glabrous, stipe c. 1 mm. Seeds brown, narrowly elliptic to oblong, c. 8-10 by 4-4.5 mm;
Asia-Tropical: Borneo present (Kalimantan present, Sabah present); Cambodia (Cambodia present), S Vietnam present
Cambodia, S Vietnam; in Malesia: Borneo (Sabah, Kalimantan). — .