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