This largely Appalachian taxon (2n = 26, 28,36) appears distinct from the more northeastern var. lucorum (2n = 40), which is unknown in Ky. and these taxa deserve to be separate species (W; Poindexter & Naczi 2014). The disjunct coll. from WASH in the Bluegrass region (McKinney #4938 at EKY and KNK) has been verified by several botanists.