As classified in WFO snapshot
December 2024
latest classification for this taxon
subspecies
Penstemon eatonii subsp. undosus
(M.E.Jones) D.D.Keck
This subspecies name was first published in J. Washington Acad. Sci. 29: 491 (1939)
This subspecies name has been reclassified since this snapshot. Its current preferred usage is a synonym .