Epilobium alpinum var. behringianum (Haussknecht) S.L. Welsh

Epilobium alpinum var. behringianum (Haussknecht) S.L. Welsh is a synonym sensu FNA Ed. Comm., 2021 of:

Epilobium hornemannii subsp. behringianum (Haussknecht) Hoch & P.H. Raven, an accepted subspecies name sensu FNA Ed. Comm., 2021.