perennial
Penstemon montanus Greene var. idahoensis (Pennell & D.D. Keck) Cronquist
Penstemon montanus Greene var. idahoensis (Pennell & D.D. Keck) Cronquist
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Penstemon montanus Greene var. idahoensis (Pennell & D.D. Keck) Cronquist — seeds, tools & books
Native range
Native range not recorded for this plant. Often a non-native cultivar or naturalized garden plant.