⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-17935, 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 81E924FC-36AA-4F35-BF58-21265F35F768) with original publication details: Prodr. 5 289 1836.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:204550-1.