This name is a synonym of Jacobaea aquatica (Hill) "G.Gaertn., B.Mey. & Scherb.".
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7F515B02-FB79-41F6-8764-BC72509129A8) with original publication details: 692 1830.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:247040-1.
This name was in version 1 of The Plant List, record gcc-115557.