Alnus incana var. virescens S. Watson
Alnus incana var. virescens S. Watson is a synonym sensu FNA Ed. Comm., 1997 of:
Alnus incana subsp. tenuifolia (Nuttall) Breitung, an accepted subspecies name sensu FNA Ed. Comm., 1997.
Alnus incana var. virescens S. Watson is a synonym sensu FNA Ed. Comm., 1997 of:
Alnus incana subsp. tenuifolia (Nuttall) Breitung, an accepted subspecies name sensu FNA Ed. Comm., 1997.