Tall woody climber, glabrescent, sparsely hairy in its younger parts. Leaves ternate to pinnate with 5-7 distant leaflets. Leaflets 3-10 cm long, petiolate, broadly ovate-cordate, coarsely dentate to incised dentate, sometimes 3-lobed, acute to nearly caudate. Flowers numerous, in panicles. Sepals whitish, 10- 12 (-14) mm long, oblong to oblong-lanceolate, acute or subacute, not ribbed, sparsely hairy outside, densely tomentose inside. Filaments flattened, linear or tapering ± abruptly towards the anthers, densely hairy. Anthers often narrower than the filaments, glabrous. Achenes pubescent. Styles 2.5-3 cm, very slender, ciliate.

Fl. Per.: July-August.

Type: Described from the Himalaya, Wallich s.n. (K-W).

B-6 D ir: Gujar, R.R. Stewart & E. Nasir 1389 (RAW), B-7 Swat: Mountain W. of Kalam, c. 7000', Rodin 5663 (RAW), Kalam, R.R. Stewart 24637 (RAW), C-7 Rawalpindi & Islamabad: Murree hills, R.R. Stewart 4036 (RAW), Murree, Kashmir Point, M.A. Siddiqi & Y. Nasir 6069 (RAW), Murree, 28.8.44, Mohinder Singh s.n. (RAW), id., 22nd Oct., K.M. Vaid s.n. (KUH), Hazara: Siran Range, Kagan, Aug. 1899, Duthie s.n. (RAW), Kashmir: B-8 Khutri Camp: Kalaban-Lipa vy., M. Qaiser & A. Ghafoor 5073 (KUH).

Distribution: Pakistan, Kashmir eastward to Bhutan, Tibet, W. China.

Closely related to Clematis buchananiana DC., but differing by the smaller size of nearly all its parts (leaflets, flowers & styles) and the sepals without ribs. The tapering filaments mentioned by Hooker f. & Thomson l.c. are not a reliable character. Commonly found from 1500-2700 m.