Penstemon azureus

Photo by: Andrea D. Wolfeİ
Location: Siskiyou Mts, Oregon

Penstemon azureus picture Penstemon azureus is a member of Penstemon subg. Saccanthera sect. Saccanthera subsect. Saccanthera (Bennett et al. 1987).

Bibliography and suggested readings

Bennett, R. W., K. Lodewick, and R. Lodewick. 1987. Penstemon nomenclature. Eugene, OR: American Penstemon Society.

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Last updated September 19, 1998.