Penstemon scouleri Lindley
Penstemon scouleri Lindley is a synonym sensu FNA Ed. Comm., 2019 of:
Penstemon fruticosus var. scouleri (Lindley) Cronquist, an accepted variety name sensu FNA Ed. Comm., 2019.
Penstemon scouleri Lindley is a synonym sensu FNA Ed. Comm., 2019 of:
Penstemon fruticosus var. scouleri (Lindley) Cronquist, an accepted variety name sensu FNA Ed. Comm., 2019.