Penstemon tolmiei subsp. typicus D.D.Keck subspecies synonym

Penstemon tolmiei subsp. modestus (Greene) D.D.Keck subspecies synonym

Penstemon tolmiei subsp. formosus (A.Nelson) D.D.Keck subspecies synonym

Penstemon tolmiei subsp. brachyanthus (Pennell) D.D.Keck subspecies synonym

Penstemon procerus var. tolmiei (Hook.) Cronquist variety accepted

Penstemon procerus var. modestus (Greene) N.H.Holmgren variety accepted

Penstemon procerus var. formosus (A.Nelson) Cronquist variety accepted

Penstemon procerus var. brachyanthus (Pennell) Cronquist variety accepted

Penstemon procerus var. aberrans (M.E.Jones) A.Nelson variety accepted

Penstemon modestus Greene species synonym

Penstemon formosus A.Nelson species heterotypic synonym

Penstemon confertus var. modestus (Greene) Jeps. variety synonym

Penstemon confertus var. aberrans M.E.Jones variety synonym

Penstemon cacuminis Pennell species synonym

Penstemon brachyanthus Pennell species synonym

Penstemon procerus var. procerus variety accepted

Penstemon pulchellus Greene species heterotypic synonym

Penstemon tolmiei Hook. species synonym

Penstemon procerus subsp. tolmiei (Hook.) D.D.Keck subspecies synonym

Penstemon procerus subsp. modestus (Greene) D.D.Keck subspecies synonym

Penstemon procerus subsp. formosus (A.Nelson) D.D.Keck subspecies synonym

Penstemon procerus subsp. brachyanthus (Pennell) D.D.Keck subspecies synonym

Penstemon procerus subsp. aberrans (M.E.Jones) D.D.Keck subspecies synonym