travelingwild:
Keckiella antirrhinioides (bush penstemon)
travelingwild:
Penstemon acuminatus (sand-dune penstemon)
travelingwild:
Penstemon albidus (white penstemon)
travelingwild:
Penstemon albidus (white penstemon)
travelingwild:
Penstemon baccharifolius (baccharis-leaf penstemon)
travelingwild:
Penstemon barbatus (bearded penstemon)
travelingwild:
Penstemon barnebyi (Barneby's penstemon)
travelingwild:
Penstemon buckleyi (Buckley's penstemon)
travelingwild:
Penstemon canescens (gray penstemon)
travelingwild:
Penstemon centranthifolius (scarlet bugler)
travelingwild:
Penstemon clutei (pink penstemon)
travelingwild:
Penstemon clutei (pink penstemon)
travelingwild:
Penstemon cobaea (cobaea penstemon)
travelingwild:
Penstemon cobaea var. purpureus (cobaea penstemon)
travelingwild:
Penstemon confertus (yellow penstemon)
travelingwild:
Penstemon crandallii (mat penstemon)
travelingwild:
Penstemon crandallii (mat penstemon)
travelingwild:
Penstemon cyanocaulis (bluestem penstemon)
travelingwild:
Penstemon cyanocaulis (bluestem penstemon)
travelingwild:
Penstemon cyanocaulis (bluestem penstemon)
travelingwild:
Penstemon cyanocaulis (bluestem penstemon)
travelingwild:
Penstemon deustus (hot-rock penstemon)
travelingwild:
Penstemon deustus (hot-rock penstemon)
travelingwild:
Penstemon digitalis (foxglove penstemon)
travelingwild:
Penstemon digitalis (foxglove penstemon)
travelingwild:
Penstemon eatonii (firecracker penstemon)
travelingwild:
Penstemon eatonii (firecracker penstemon)
travelingwild:
Penstemon gracilis (slender penstemon)
travelingwild:
Penstemon grandiflorus (shell-leaf penstemon)
travelingwild:
Penstemon guadalupensis (Guadalupe penstemon)
