This name is a synonym of Plantago aristata var. nuttallii (Rapin) E. Morris.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50141094) with original publication details: Mém. Soc. Linn. Paris 6: 470 1827.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:685467-1.
This name was in version 1 of The Plant List, record tro-50141094.