Circaea quadrisulcata subsp. canadensis (Linnaeus) Á. Löve & D. Löve

Circaea quadrisulcata subsp. canadensis (Linnaeus) Á. Löve & D. Löve is a synonym sensu FNA Ed. Comm., 2021 of:

Circaea canadensis (Linnaeus) Hill subsp. canadensis, an accepted subspecies name sensu FNA Ed. Comm., 2021.