Toxicodendron radicans subsp. negundo (Greene) Gillis

Toxicodendron radicans subsp. negundo (Greene) Gillis is a synonym sensu FNA Ed. Comm., in prep. f of:

Toxicodendron radicans (Linnaeus) Kuntze var. radicans, an accepted variety name sensu FNA Ed. Comm., in prep. f.