Shrubs ca. 6 m tall [large woody climbers to 20 m in Nepal]. Branchlets thin, densely sticky and shortly strigose. Leaves simple, alternate; petiole 5-8 mm, shortly strigose; leaf blade green, elliptic or obovate-oblong, 7-12 × 3-6 cm, papery or subleathery, densely sticky with short strigose hairs, sometimes adaxially glabrous, midvein raised abaxially, impressed adaxially, lateral veins 10-12 pairs, anastomosing near margin, veinlets reticulate, base obtuse to subrounded, margin entire, apex acute. Panicles terminal or axillary, 13-15 cm, shortly yellowish brown strigose; bracts caducous, minute. Sepals 5, unequal; outer 3 oblong-ovate, nearly equal, small, ca. 2 mm, apex obtuse, ciliate; inner 2 petaloid, large, ca. 7 × 5 mm, base clawed, apex obtuse, ciliate. Petals 3, basally connate, purplish red; lateral petals obtriangular, ca. 5 × 2.5 mm, apex truncate, keel weakly rounded, ca. 8 mm, apex with cucullate appendage. Ovary subglobose, ca. 1 mm in diam.; style curved, inclined to one side. Samara and fruit body globose, 7-15 mm in diam., fruit coat thick, hard, conspicuously veined, apex leathery winged; wing oblong, 6-8 × 1.5-2 cm, with strongly curved veins, base narrower, apex obtuse. Seed 1, brownish, ovoid, ca. 7 mm in diam. Fl. May-Aug, fr. Oct-Dec.
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