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⚠ Version 1 of The Plant List has been superseded.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-127928, with some changes.

M Carduus tracyi Rydb. is a synonym of Cirsium tracyi (Rydb.) Petr.

This name is a synonym of Cirsium tracyi (Rydb.) Petr..

The record derives from TICA which reports it as a synonym (record C6E04B0A-3608-4197-82AF-D8D8C62D255B) with original publication details: Bull. Torrey Bot. Club 32 133 1905.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:45602-2.