⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-39872, with some changes.
This name is a synonym of Ageratina thyrsiflora (Greene) R.M.King & H.Rob..
The record derives from TICA which reports it as a synonym (record 29D8F0E9-CABF-45BC-9665-4A005A219569) with original publication details: Proc. Amer. Acad. Arts xliii. 36 (1907) 36 1907.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:101102-2.