Image source:
https://www.flickr.com/photos/dinesh_valke/2933547385/
https://www.flickr.com/photos/dinesh_valke/2934402854/
https://www.flickr.com/photos/dinesh_valke/2934401350/
This is Luffa acutangula var. amara (Roxb.) Clarke
Coldenia
Scientific classification
Kingdom:Plantae
Clade:Tracheophytes
Clade:Angiosperms
Clade:Eudicots
Clade:Asterids
Order:Boraginales
Family:Boraginaceae
Subfamily:Cordioideae
Genus:Coldenia L.
Species:C. procumbens
Binomial name:Coldenia procumbens L.