⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-7055, with some changes.

Cirsium casabonae subsp. trispinosum (Moench) Maire is a synonym of Ptilostemon rhiphaeus (Pau & Font Quer) Greuter

This name is a synonym of Ptilostemon rhiphaeus (Pau & Font Quer) Greuter.

The record derives from TICA which reports it as a synonym (record 6B657D7A-45DD-42A0-891A-0D214C47A0D5).