Penstemon procerus subsp. tolmiei (Hooker) D.D. Keck

Penstemon procerus subsp. tolmiei (Hooker) D.D. Keck is a synonym sensu FNA Ed. Comm., 2019 of:

Penstemon procerus var. tolmiei (Hooker) Cronquist, an accepted variety name sensu FNA Ed. Comm., 2019.