⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-57535, with some changes.

Centaurea dubia subsp. nigrescens (Willd.) Hayek is a synonym of Centaurea nigrescens Willd.

This name is a synonym of Centaurea nigrescens Willd..

The record derives from TICA which reports it as a synonym (record C2DA015B-735F-436E-BE67-8719045EF7B5) with original publication details: 210 1918.