This name is a synonym of Plantago linearis Kunth.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25200482) with original publication details: Repert. Spec. Nov. Regni Veg. 14: 112 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:201388-2.
This name was in version 1 of The Plant List, record tro-25200482.