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⚠ Version 1 of The Plant List has been superseded.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-119220, with some changes.

M Carduus floccosus 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 14F68E25-7B4F-41B4-A062-C4AD4C0E57E1) 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:45527-2.