Penstemon similar species, part 8: pink and purple flowers of Mexico
Starting list, under construction
Penstemon amphorellae
Penstemon bolanius
Penstemon campanulatus
Penstemon dasyphyllus
---Penstemon filisepalis?
Penstemon gentianoides
Penstemon hidalgensis
Penstemon leonensis
Penstemon minutifolius
Penstemon occiduus
Penstemon perfoliatus
Penstemon potosinus
Penstemon saltarius
Penstemon stenophyllus
Penstemon tenuifolius
Penstemon tepicensis
Penstemon wendtiorum: rose to lavender, collected only once in northern Nuevo Leon