Lycopodium clavatum var. megastachyon Fernald & Bissell
Lycopodium clavatum var. megastachyon Fernald & Bissell is a synonym sensu FNA Ed. Comm., 1993 of:
Lycopodium lagopus (Laestadius ex C. Hartman) G. Zinserling ex Kuzeneva, an accepted species name sensu FNA Ed. Comm., 1993.