As classified in WFO snapshot
December 2023
latest classification for this taxon
variety
Cypripedium calceolus var. citrinum
B.Hergt
This variety name was first published in Mitth. Thüring. Bot. Vereins , n.f., 13-14: 120, 127 (1899)
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .