⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2816477, with some changes.
This name is a synonym of Amaranthus spinosus L..
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Amer. Midl. Naturalist 3: 278 1914.