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Penstemon calcareus

Limestone beardtongue

Penstemon calycosus

Longsepal beardtongue

Penstemon bicolor

Abelia chinensis var. aschersoniana

Penstemon confusus

Penstemon cyanocaulis

Penstemon × crideri

Penstemon deaveri

Penstemon degeneri

Penstemon diphyllus

Penstemon dissectus

Penstemon comarrhenus

Penstemon cyananthus

Wasatch penstemon

Penstemon cyaneus

Blue penstemon

Penstemon cyathophorus

Sagebrush beardtongue

Penstemon deamii

Abelia chinensis

Penstemon cusickii

Penstemon glandulosus

Penstemon glaucinus