This name is a synonym of Taraxacum paludosum (Scop.) Crépin.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 91DC5C7F-BD98-494B-8DFF-41A8B4C5B862) with original publication details: 542 1905.
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 Taraxacum officinale in version 1 of The Plant List.