⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-106576, 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 753302EA-F01B-4D9C-A8A5-A81D558B211F) with original publication details: 1869.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:197879-1.