Alnus rugosa (Du Roi) Sprengel var. rugosa
Alnus rugosa (Du Roi) Sprengel var. rugosa is a synonym sensu FNA Ed. Comm., 1997 of:
Alnus incana subsp. rugosa (Du Roi) R.T. Clausen, an accepted subspecies name sensu FNA Ed. Comm., 1997.
Alnus rugosa (Du Roi) Sprengel var. rugosa is a synonym sensu FNA Ed. Comm., 1997 of:
Alnus incana subsp. rugosa (Du Roi) R.T. Clausen, an accepted subspecies name sensu FNA Ed. Comm., 1997.