⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-16183, with some changes.

Ageratum conyzoides subsp. houstonianum (Mill.) M.Sharma is a synonym of Ageratum houstonianum Mill.

This name is a synonym of Ageratum houstonianum Mill..

The record derives from TICA which reports it as a synonym (record 34095BC7-B8C9-4D41-A65E-1DF1C16598B8) with original publication details: 152 1984.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:952070-1.