⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-102132, with some changes.

Carduus crassifolius Willd. 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 2E295852-0E01-4587-8DB0-9E5CA1825216) with original publication details: 838 1809.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:188565-1.