This name is a synonym of Plantago rigida Kunth.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25200493) with original publication details: Syn. Pl. 1: 435 1839.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:685597-1.
This name was in version 1 of The Plant List, record tro-25200493, and has not been changed.