The record derives from TICA
(data supplied on )
which reports it as a synonym (record
0F268405-7171-4C42-8CB4-AA18F94BC0E6) with original publication details: Species Plantarum. Editio quarta 3: 1897 1800.
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Gnaphalium arvense in version 1 of The Plant List.