More images of Colocasia affinis Schott. http://www.aroidpictures.fr/GENERA/COLOCASIA/coloaffinis.html

Too bad we are not able to see its side view. I’m taking a guess here. Maybe a type of Colocasia? Check out the Colocasia affinis, its numerous synonyms include Colocasia bicolor C.L.Long & L.M.Cao Alocasia jenningsii Veitch. Check out these included link for more information & images. Click on images to enlarge. Best wishes! On the side note. For future reference, please include the location. https://davesgarden.com/guides/pf/go/53954/