This name is a synonym of Chondrilla graminea M.Bieb..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an invalid name (record 77EF9D89-52EA-4F15-B535-12B1044C4D1A) with original publication details: 33 1812.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:192899-1.
This name was in version 1 of The Plant List, record gcc-9991.