As classified in WFO snapshot
December 2022
Warning: older classification
variety
Philadelphus lewisii var. parvifolius
Torr.
This variety name was first published in Pacif. Railr. Rep. Whipple, Bot. 4(5; 4): 90 (1857)
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .