This is common in northeastern swamps and disjunct in east Asia. It was reported from Ky. in an environmental assessment for a site BOON (Anonymous 1977). The record was accepted by BT, but plants could not be not located in further field work. There is also an old unverified report from the Louisville area in JEFF (McMurtrie 1819). North of the Ohio River, Symplocarpus is known from central to nortthern Ind., and throughout most of Ohio, including some counties adjacent to Ky. (K). To the east, it occurs in the Ridge & Valley region and beyond (K).