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⚠ Version 1 of The Plant List has been superseded.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-2623, with some changes.

L Hieracium caesium subsp. opacum (Dahlst.) Zahn is a synonym of Hieracium opacum (Dahlst.) Johanss.

This name is a synonym of Hieracium opacum (Dahlst.) Johanss..

The record derives from TICA which reports it as a synonym (record 4AAD9C07-432C-41E7-9B12-04D569D982B5) with original publication details: "Zahn, in Engler, Pflanzenr. 76. 1921." 454 1921.