It would help, but the information is obsolete, because Chelle's plant is indeed Entireleaf Morning Glory (Iopomoea hederacea var. integriuscula), but I. hederacea var. integriuscula has been reclassified as a synonym of I. nil.
http://www.theplantlist.org/tp...
Perhaps the common name (Ivy-Leaved Morning Glory) should be deleted now that the species includes subspecies that aren't ivy-leaved.