Vigna bournaea

Vigna bournaea Gamble;

  
ANDEC01 Vigna(?) sp. for identification : 10 posts by 3 authors. Attachments (12)
Nelliyampathy, Kerala
Climber
Found growing all over the hills
November 2014

Vigna – species in eFIoraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ efloras/ books etc., where ever available) 

The photographs uploaded are Vigna unguiculata

It is Vigna pilosa

phaseolus lunata

Correct spelling is Phaseolus lunatus L. as per The Plant List

This is very confusing for me sir. Not sure which of the several provided identities is the correct one?

Vigna bournaea Gamble