Sulphur Penstemon, Taper-leaved Penstemon
Penstemon attenuatus var. attenuatus
Synonym: Penstemon attenuatus ssp. attenuatus
Taper-leaved penstemon blooming at Brooks Memorial State Park, Klickitat County, Washington...........May 24, 2015.
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Taper-leaved penstemon blooming at Brooks Memorial State Park, Klickitat County, Washington...........May 24, 2015.
Paul Slichter