Lithophragma tenellum var. thompsonii (Hoover) C.L. Hitchcock

Lithophragma tenellum var. thompsonii (Hoover) C.L. Hitchcock is a synonym sensu FNA Ed. Comm., 2009 of:

Lithophragma tenellum Nuttall ex Torrey & A. Gray, an accepted species name sensu FNA Ed. Comm., 2009.