This name is a synonym of Plantago canescens var. cylindrica (J.M. Macoun) B. Boivin.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50121216) with original publication details: Ottawa Naturalist 13(7): 168 1899.
This name was in version 1 of The Plant List, record tro-50121216, and has not been changed.