The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-116512, with some changes.

M Carduus megacephalus A.Nelson is a synonym of Cirsium undulatum (Nutt.) Spreng.

This name is a synonym of Cirsium undulatum (Nutt.) Spreng..

The record derives from TICA which reports it as a synonym (record 0163F528-C182-4FC6-8CFC-BE9157C25E3C) with original publication details: 587 1909.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:188821-1.