Penstemon ambiguus or Leiostemon ambiguus
(Gilia Beardtongue)
Scrophulariaceae (Figwort)

Penstemon ambiguus grows on sandy soils on the eastern plains of Colorado. Flowers have pale pink petals with a darker pink tube. Leaves are narrowly linear. Well-developed plants have a bushy shape. P. ambiguus looks unlike any other Penstemon sp., and some botanists have moved it into the genus Leiostemon.

Vegetation zone:  Plains
Time of bloom:  May - August
Origin:  Native
Eastern Colorado Wildflowers