Penstemon albidus, anthers, staminodium, position of corolla lobes in early anthesis. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, flower. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, flowers (close up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, didynamous stamens, furry staminode, glandular hairs on corolla. Family Scrophular...
Penstemon alpinus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, flowers (close-up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, flowers (close-up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon alpinus, flowers. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp., inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, inflorescence. 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 sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, flower. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, flowers (close up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, didynamous stamens, furry staminode, glandular hairs on corolla. Family Scrophular...
Penstemon alpinus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, flowers (close-up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, flowers (close-up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon alpinus, flowers. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp., inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, inflorescence. 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 sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, flower. Family Scrophulariaceae, Subclass Asteridae. Origin: Native