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⚠ Version 1 of The Plant List has been superseded.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-71850, with some changes.

L Carduus defloratus subsp. crassifolius (Willd.) Hayek is a synonym of Carduus defloratus subsp. summanus (Pollini) Arcang.

This name is a synonym of Carduus defloratus subsp. summanus (Pollini) Arcang..

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.