As classified in WFO snapshot
December 2024
latest classification for this taxon
form
Veronicastrum virginicum f. purpureum
(Pursh ex Eaton) Farw.
This form name was first published in Rep. (Annual) Michigan Acad. Sci. 21: 370 (1920)
This form name has been reclassified since this snapshot. Its current preferred usage is a synonym .