Aspidopterys orbiculata (Roxb. ex Wallich) Niedenzu in Arbeitn Bot. Inst. Koenigl. Lyceums Hosianum Braunsberg 6: 14. 1915 & in Engl., Pflanzenr. 4 (141): 81. 1928. Hiraea orbiculata Roxb. ex Wallich, Pl. Asiat. Rar. 1: 13. 1831. H. rotundifolia Roxb., Fl. Ind. 2: 448. 1824. Aspidopterys rotundifolia (Roxb.) A. Juss. in Ann. Sci. Nat. Bot. ser. 2. 13: 267. 1840. A. nutans Hook. f. var. rotundifolia Hook. f., Fl. Brit. India 1: 421. 1874.

Climbers; branches glabrate. Leaves ovate to orbicular, rounded or cordate at base, acute at apex, 10 - 15 x 6 - 10 cm, glabrous above, white villous beneath; petioles 1 - 1.5 cm long, villous. Panicles 10 - 22 mm long, villous. Flowers ca 1 cm across; buds ca 3 mm long; pedicels ca 2 cm long (in fruits), articulate above middle at about 9 mm from base, white-villous above articulation. Calyx-lobes ovate, ca 1.5 mm long. Petals ovate or obovate, ca 3 x 2 mm. Anthers ovoid, ca 1 mm long. Ovary sericeous. Samaras ovate to orbicular, 2.5 - 4 x 2 - 3 cm, dorsal wing cristate on nucleus, sparsely villous; carpophore ca 4 mm long.

Distrib. India: Rare. Uttar Pradesh, Sikkim and Meghalya.

Bangladesh (Chittagong) and China.