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Penstemon cinicola
Ash Penstemon
The genus Penstemon comprises about 272 species of which 80 species, at least, may be found in the north-west of USA. This genus had been traditionally placed in the Scrophulariaceae family. Due to new genetic research, it has now been placed in the vastly expanded family Plantaginaceae.
Botanical resources
- Northwest Penstemon. Dee Strickler. Flower Press. Montana
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