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;
 

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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 –
  1. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200007594
  2. http://www.efloras.org/object_page.aspx?object_id=40040&flora_id=2

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