Clematis roylei

Clematis roylei Rehder, J. Arnold Arbor. 22: 575 1941. (Syn: Clematis nutans Royle [Illegitimate]);

Common name: Royle’s Clematis

India (Himachal Pradesh, Uttar Pradesh, Bihar, Madhya Pradesh, Orissa, Andhra
Pradesh), Nepal, Myanmar [Burma] (Kachin, Chin) as per Catalogue of Life;

India: Shaded places in forests along banks of rivers or streams, 500 – 2200 m. Himachal Pradesh, Uttar Pradesh, Bihar, Madhya Pradesh, Orissa and Andhra Pradesh; Nepal as per BSI Flora of India;

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Clematis buchananiana DC. ?? : 6 posts by 2 authors. Attachments (6) – around 800 kb each.

Location: Chautara, Nepal  
Date: 18 December 2017

Altitude: 4800 ft. 

Habit : Wild

To me looks different from images at Clematis buchananiana 

To me it seems to be Clematis roylei.

Please refer FLOWERS OF THE HIMALAYA by Oleg Polunin and Adam Stainton.
Plate-9, 70. That image was taken at Dolpo, Western Nepal.

This is Clematis royelii of Ranunculceae.

Thank you all ! Clematis roylei Rehder




References:

Catalogue of Life  The Plant List Ver.1.1  IPNI
 MNHN (with specimen) BSI Flora of India  Annotated checklist of Flowering plants of Nepal  Flowers of India Flora of Eastern Ghats: Hill Ranges of South East India, Volume 1 By T. Pullaiah, D. Muralidhara Rao, K. Sri Ramamurthy (2002- details with keys)