⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-59063, with some changes.
This name is a synonym of Xanthium orientale subsp. italicum (Moretti) Greuter.
The record derives from TICA which reports it as a synonym (record 7ABB097B-9474-456B-8682-9388BFFC70B6) with original publication details: Canadian Journal of Botany 37: 204 1959.