Clematis cadmia

India (Uttar Pradesh, Meghalaya, Assam, Manipur), Bhutan, Bangladesh, Myanmar [Burma], China (Anhui, Guangdong, Hubei, S-Jiangsu, N-Jiangxi, N-Zhejiang), Vietnam, Myanmar [Burma] (Kachin, Mandalay, Sagaing) as per Catalogue of Life;
Herb Id from Bangladesh SM029 : 7 posts by 4 authors. Attachments (1).  
Habit: Ground creeper
Habitat: Wetland floodplain
Location: Tanguar Haor, Taherpur, Sunamganj
Flowering: Winter
Clematis cadmia Ham.?
Nice looking flowers. Thanks for sharing.
Clematis- some‎ species in India & eFI with some keys
You can see ternate leaves in the modified pic.
You can read info -

Thanks ! I will give it to Roney Da (Ronald Halder), He is actually a nature photographer.