- Scientific Name: Clematis montana var. longipes W.T.Wang
- Ref: Acta Phytotax. Sin. 38: 306. 2000
- English Common Name: longstalk mountain clematis
- Chinese Common Name: 大花绣球藤 dàhuā xiùqiú∙téng
- Family: Ranunculaceae
- Genus: Clematis
- Distribution: Scrub, along streams; 1100–4000 m. S Gansu, NE Guizhou, W Hubei, W Hunan, S Shaanxi, Sichuan, SE Xizang, NW Yunnan [N India].
- Photo: Mt. Emei, Sichuan
- Note: FRPS identified it as Clematis montana var. grandiflora Hook. (FRPS 28:222. 1980), while FOC (6:342) considered it is a mistake. C. montana var. grandiflora is not an accepted infraspecific name in ITIS CoL.
Leaflet blades 3--6.5(--9.8) cm. Flowers 5--11 cm in diam. Pedicel 10--19 cm. Sepals 2.6--5 × 1.3--2.6(--3.5) cm, abaxially densely appressed puberulous near margin but with a glabrescent band 0.8--1.5 cm wide, apex usually rounded-obtuse to acuminate. Anthers narrowly oblong, (2--)3--4 mm, apex obtuse or obscurely minutely apiculate. Ovaries glabrous. Achenes glabrous; persistent style 2.5--4.5 cm. Fl. Apr--Aug, fr. Jul--Aug. (Flora of China)