PENSTEMON albidus (lavender)
Penstemon cardinalis
PENSTEMON cardinalis ss. pcardinalis
PENSTEMON confertus
PENSTEMON digitalis ‘Huskers Red’
PENSTEMON fruticosus ‘Purplehaze’
PENSTEMON grandiflorus ‘War Axe’
PENSTEMON hallii
PENSTEMON hirsutus
Penstemon newberryi
PENSTEMON pinifolius ‘Magdalena Sunshine’
Penstemon pinifolius compactus
PENSTEMON serrulatus
PENSTEMON strictus
PENSTEMON whippleanus
Penstemon ?
