This is a high-climbing perennial herb of swamp borders and river banks in southeastern states. It is known from all counties in w. Tenn. and se. Mo. along the Mississippi Rv. (Ch, Y). But the only verified record from Ky. is a recent coll. M. Homoya (WKY) from below Bissell Bluff in LIVI. A supposed coll. of KSNPC from MCLE (R. Hannan & Phillippe #04800) was based on misidentified Echinocyctis lobata (M).