As classified in WFO snapshot
December 2023
latest classification for this taxon
subspecies
Phlox douglasii subsp. rigida
This subspecies name was first published in Proc. Acad. Nat. Sci. Philadelphia 93: 137. 1938
At the time of this classification snapshot, this subspecies 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-0001099748.