perennial
Penstemon procerus Douglas ex Graham var. modestus (Greene) N.H. Holmgren
Penstemon procerus Douglas ex Graham var. modestus (Greene) N.H. Holmgren
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Penstemon procerus Douglas ex Graham var. modestus (Greene) N.H. Holmgren — seeds, tools & books
Native range
Native range not recorded for this plant. Often a non-native cultivar or naturalized garden plant.