This name is a synonym of Acmella oleracea (L.) R.K.Jansen.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D7DC3A18-CB6C-449C-A451-C9700EDD5D49).
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 Spilanthes oleracea in version 1 of The Plant List.