Pteridium aquilinum var. latiusculum (Desvaux) Underwood ex A. Heller

Pteridium aquilinum var. latiusculum (Desvaux) Underwood ex A. Heller is a synonym sensu FNA Ed. Comm., 1993 of:

Pteridium aquilinum subsp. latiusculum (Desvaux) Hultén ex R.T. Clausen, an accepted subspecies name sensu IPNI.