Tinospora glabra (Burm. f.) Merr. in J. Arn. Arb. 19: 340. 1938. Menispermum glabrum Burm. f., Fl. Ind. 216. 1768. T. uliginosa Miers in Ann. Mag. Nat. ser.3, 13: 321. 1864 & Contr. Bot. 3: 35. 1871; Hook. f. & Thomson in Fl. Brit. India 1: 97. 1872. T. andamanica Diels in Engler, Pflanzenr. 46: 141. 1910.

Large woody climbers; young branches striate, becoming warty with raised lenticels; bark smooth, thin, papery, detached on drying. Leaves oblong-ovate or narrowly to broadly ovate, cordate to truncate at base, acuminate at apex, 7 - 12 x 5 - 9 cm; domatia present beneath with glandular patches; petioles 4 - 8 cm long. Inflorescences axillary, pseudoracemose, slender, 1 - 20 cm long, lax-flowered; bracts subulate, ca 1 mm long. Male flowers: pedicels 6 - 12 mm long, slender; sepals yellow or greenish yellow; outer 3 narrowly ovate, ca 1 mm long; inner 3 broadly elliptic, concave, 4 - 5 mm long; petals 6, broadly cuneate-obovate, ineurved along lateral edges, 2 - 3 mm long, papillose outside at base; stamens 6, clavate, 3 - 5 mm long. Female flowers: sepals and petals as in male; staminodes 6, subulate, 0.5 - 1 mm long; carpels 3, ellipsoid, cm 1.5 mm long, gynophore subglobose, 1 - 1.5 mm across; stigma lobed. Drupes 10 - 12 x 5 - 6 mm, red, radiating from unbranched columnar 2 - 4 mm long carpophore; stalks 4 - 10 mm long; pericarp drying thin and close to endocarp; endocarp subrotund, elliptic in outline, pointed at base, keeled at apex, 6 - 8 x 3 - 5 mm, dorsally convex with a median ridge, irregularly tuberculate, ventrally flattened.

Fl. & Fr. Throughout the year.

Distrib. India: Prefers various habitats like beach, open woods, shrubberies, lime-stone hill, scrub forests, riverine dense forests, semi-moist forests and littoral rain forests, etc., up to 500 m. S. Andaman Islands.

China (Hainan), Malaysia, Sumatra, Java, Lesser Sunda Islands, Borneo, Philippines, New Guinea to Solomon Islands.