⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2616067, and has not been changed.
This name is a synonym of Acer saccharum subsp. nigrum (F.Michx.) Desmarais.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Fl. Indiana 656 1940.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1855-2.