Argyreia argentea

Argyreia argentea (Roxb.) Sweet, Hort. Brit. ed. 2: 373 1830. (syn: Argyreia sericea St. Lag.; Convolvulus argenteus Wall.; Convolvulus festivus Wall.; Lettsomia argentea Ridl.);
Bangladesh, E-India (Assam, Khasia), Myanmar [Burma] (Kachin, Mandalay,
Sagaing), Nepal, Vietnam as per Catalogue of Life; 
 

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Argyreia sp. from Kamrup district, Assam : Attachments (13). 4 posts by 3 authors.

Attached images are Argyreia sp. Please ID the species.
Date :14.09.2013
Location: Kamrup district, Assam
Family : Convolvulaceae
Genus & species : Argyreia sp
Habitat: Grows wild
Habit : Climber
Flower : Purple
Fruits : Not seen

Argyreia species so far in efi with keys

Argyreia nervosa?

Seems to be Argyreia nervosa  

Looks different from images at Argyreia nervosa (Burm. f.) Bojer. Also I could not find a match as per comparative images at Argyreia‎

Argyreia argentea is worth a try.

Thanks, …, for the id as Argyreia argentea.
To me also appear close as per specimens and illustration at

 

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Convulvulaceae Id from BD-SM_2012 : 3 posts by 2 authors. Attachments (1)
Location: Sylhet

Habitat: Hill side

Pl. check comparative images at 

To me appears close to images at Argyreia argentea (Roxb.) Sweet as per comparative images at Argyreia‎