⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-53512, with some changes.
This name is a synonym of Conyza canadensis (L.) Cronquist.
The record derives from TICA which reports it as a synonym (record 226D5D06-1151-477E-AD22-66D5896927D1) with original publication details: Boston J. Nat. Hist. 6 220 1850.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:93634-2.