⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-71850, with some changes.
This name is a synonym of Carduus defloratus subsp. summanus .
The record derives from TICA which reports it as a synonym (record C06413AF-C294-4C32-B997-F94B9256AD7D
) with original publication details: "Hayek, Fl. Steiermark 2. 1913." 596 1913.