Penstemon tenuis, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Cultivated
Penstemon wrightii, plants in habitat. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon x jonesii?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon tenuis, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Cultivated
Penstemon tenuis, flowers (close up). Family Scrophulariaceae, Subclass Asteridae. Origin: Cultivate...
Penstemon tenuis, glandular pubescence and markings in corolla. Family Scrophulariaceae, Subclass As...
Penstemon sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp., inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon alpinus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon wrightii, plants in habitat. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon x jonesii?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon tenuis, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Cultivated
Penstemon tenuis, flowers (close up). Family Scrophulariaceae, Subclass Asteridae. Origin: Cultivate...
Penstemon tenuis, glandular pubescence and markings in corolla. Family Scrophulariaceae, Subclass As...
Penstemon sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp., inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon alpinus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon wrightii, plants in habitat. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon x jonesii?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native