As classified in WFO snapshot
December 2023
latest classification for this taxon
species
Penstemon washingtonensis
This species name was first published in Amer. Midl. Naturalist 33: 150 (1945)
At the time of this classification snapshot, this species name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-0001137162.