Betula alba var. papyrifera (Marshall) Spach
Betula alba var. papyrifera (Marshall) Spach is a synonym sensu FNA Ed. Comm., 1997 of:
Betula papyrifera Marshall, an accepted species name sensu FNA Ed. Comm., 1997.
Betula alba var. papyrifera (Marshall) Spach is a synonym sensu FNA Ed. Comm., 1997 of:
Betula papyrifera Marshall, an accepted species name sensu FNA Ed. Comm., 1997.