Erigeron thompsonii S.F. Blake ex J.W. Thompson

Erigeron thompsonii S.F. Blake ex J.W. Thompson is a synonym sensu FNA Ed. Comm., 2006b of:

Erigeron peregrinus var. thompsonii (S.F. Blake ex J.W. Thompson) Cronquist, an accepted variety name sensu FNA Ed. Comm., 2006b.