Acer nigrum F. Michaux var. nigrum
Acer nigrum F. Michaux var. nigrum is a synonym sensu Newmaster & Ragupathy, 2005 of:
Acer nigrum F. Michaux, an accepted species name sensu FNA Ed. Comm., in prep. f.
Acer nigrum F. Michaux var. nigrum is a synonym sensu Newmaster & Ragupathy, 2005 of:
Acer nigrum F. Michaux, an accepted species name sensu FNA Ed. Comm., in prep. f.