Plantae > Tracheophyta > Magnoliopsida > Lamiales > Plantaginaceae > Penstemon > Penstemon aridus Penstemon aridus (stiffleaf penstemon)
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Plantae > Tracheophyta > Magnoliopsida > Lamiales > Plantaginaceae > Penstemon > Penstemon aridus Penstemon aridus (stiffleaf penstemon)
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