⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-5615, and has not been changed.
This name is a synonym of Hieracium nigrescens subsp. subrhaeticum .
The record derives from TICA which reports it as a synonym (record 305208B8-D18C-4DE9-8D09-0A7B3A7BBD26
) with original publication details: "Prain, Index Kew., Suppl. 4. 1913." 121 1913.