Equisetum variegatum subsp. alaskanum (A.A. Eaton) Hultén

Equisetum variegatum subsp. alaskanum (A.A. Eaton) Hultén is a synonym sensu FNA Ed. Comm., 1993 of:

Equisetum variegatum Schleicher ex F. Weber & D. Mohr, an accepted species name sensu FNA Ed. Comm., 1993.