The only Ky. record of this northern (circumboreal) taxon) is a coll. attributed here to WHIT (KY); it was made by A.R. Crandall at "Corbin" in the 1880s, but it could be from adjacent KNOX or LAUR. [The species was also listed as an associate of Cypripedium kentuckiense on a coll. label from KNOX at BEREA; but this was a misidentification according to R. Thompson, pers. comm.] C. viride has often been combined with Platanthera, and previously into the genus Habenaria, but it forms a distinct widely distributed circumboreal complex; 2n = 40 (versus 42 generally in Platanthera). Dactylorhiza may become the accepted generic name (W).