Lianas to 2.5 m tall. Branchlets together with petioles glabrous and densely scaly. Leaves opposite; petiole 10-17 mm; leaf blade broadly elliptic, 7-13 × 5-8.5 cm, both surfaces glabrous, abaxially densely yellowish or brownish minutely scaly, adaxially white scaly and densely verruculose, base obtuse or subacute, apex obtuse and mucronate or shortly acuminate; lateral veins in 7 or 8 pairs. Inflorescences terminal and axillary, dichasially compound spikes 5-13 cm, usually grouped at branchlet apex and forming a panicle; axes densely villosulous, inconspicuously scaly; distal, flower-bearing part of spikes very condensed and forming obconic to hemispheric capitula; bracts caducous, linear, very small. Calyx tube distally narrowly funnelform, 11-13 mm, abaxially glabrous but yellow scaly at first, becoming smooth after anthesis, adaxially with a ring of dense, coarse hairs not exserted; lobes 4, reflexed, ± deltoid, ca. 2 mm, apex acute or shortly acuminate. Petals 4, white, oblong-elliptic or obovate, ca. 1.5 mm, apex obtuse-rounded or retuse. Stamens 8, exserted, 5-6 mm. Fruit subglobose, 4-winged, 2-3.5 × 2-2.5 cm, yellow or red scaly. Fl. Jul-Aug, fr. Aug.