This largely midwestern tuberous species was listed for west-central Ky. by Hussey (1876) and Linney (1880, 1882). However, no colls. of these early geobotanical explorers have been located. A coll. by R. Athey in 1973 from GRAV has been reported on SERNEC, but BA did not include this record; the coll. is probably virginiana (M. Brock, pers. comm.). The species is known from se. Mo., c. Tenn. and other disjunct localities in southeastern states (FNA 3; K, W).