Mikania micrantha Kunth in H.B.K., Nov. Gen. Sp. 4: 134. 1820. M. scandens auct.; C.B. Clarke, Comp. Ind. 34. 1876, non Wind.

Twiners; stems terete or slightly angled, mostly fistulose. Leaves opposite, cordate-hastate, short acuminate, undulate or distantly blunt toothed, up to 13 x 10 cm (excluding petiole), thin, glandular punctate, 3(-5) nerved from base, petioled; petiole up to 6 cm long. Heads in corymbose panicles. Involucral bracts oblong, ca 3.5 mm long, glabrous or puberulous. Achenes 1.5 - 2 mm long, 4 - 5 ribbed, glandular. Pappus hairs many, uniseriate.

Fl. & Fr. June.- Sept.- Dec.

Distrib. India: Naturalized in several parts: Uttar Pradesh, W. Bengal, Sikkim, Assam, Tripura and Kerala.

Nepal, Myanmar, Malay Archipelago, Cochinchina, Anaam, Philippines, Taiwan, Tropical Africa and America.

Notes. Natives use the leaves to cure wounds (Blumea 1: 505. 1935).