Sulphur Penstemon, Taper-leaved Penstemon
Penstemon attenuatus var. attenuatus
Synonym: Penstemon attenuatus ssp. attenuatus
![Flowers of Sulphur Penstemon, Taper-leaved Penstemon: Penstemon attenuatus var. attenuatus (Synonym: Penstemon attenuatus ssp. attenuatus)](attenuatus/attenuatus05-24-2015c.jpg)
Taper-leaved penstemon blooming at Brooks Memorial State Park, Klickitat County, Washington...........May 24, 2015.
- ![Inflorescence of Sulphur Penstemon, Taper-leaved Penstemon: Penstemon attenuatus var. attenuatus (Synonym: Penstemon attenuatus ssp. attenuatus)](attenuatus/attenuatus05-24-2015b.jpg)
Taper-leaved penstemon blooming at Brooks Memorial State Park, Klickitat County, Washington...........May 24, 2015.
Paul Slichter