Clematis acutangula Hook. f. & Thomson in Fl. Brit. India 1: 3. 1872.

Slender woody climbers; stems erect or weakly scandent; branches angled, deeply furrowed and ribbed, herbaceous or slightly woody, hairy at nodes, glabrous at internodes. Leaves opposite, bipinnate, temate to biternate, 12 - 18 cm long; petioles 6 - 8 cm long, angled. puberulous; leaflets ovate or ovate-lanceolate, rounded or truncate at base, acute to acuminate at apex, coarsely crenate-serrate along margins, simple or shallowly 3-ribbed, 2 - 5 x 1 - 3 cm, puberulous; nerves 5, palmate, raised beneath; petiolules 2 - 4 cm long. Inflorescences axillary, sessile, 1 - 3-flowered; pcdicels 2 - 5 cm long; bracts sessile, ovate-lanceolate, ca 5 mm long. Flowers ca 3 cm across brownish yellow. Sepals 4 - 5, spreading, oblong-elliptic, acute, 1 - 1.5 x 0.4 - 0.6 cm, narrowly 3-winged on back, subglabrous, pubescent outside, with long hairs along margins.Filaments linear, flat, ca 1 cm long, pilose; anthers ca 2 mm long; connective slightly produced, densely hairy. Achenes ovate or elliptic-ovate, acute, flat, margined, ca 3 x 2 mm; style brownish silky, up to 2.5 cm long.

Fl. June-Nov.; Fr. Sept. -Jan.

Distrib. India: Subtropical and temperate open pine forests and scrubs, 1500 - 2700 m. Meghalaya and Nagaland.

Bhutan.