⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-79411, with some changes.

Ambrosia artemisiifolia f. villosa Fernald & Griscom is a synonym of Ambrosia polystachya DC.

This name is a synonym of Ambrosia polystachya DC..

The record derives from TICA which reports it as a synonym (record 3C7987BA-FA1A-4852-BB33-6B6770B18C5D) with original publication details: Rhodora 37 185 1935.