Plantago macrorhiza subsp. occidentalis Pilg. in Repert. Spec. Nov. Regni Veg. 28: 310. 1930
Plantago macrorhiza subsp. occidentalis in Repert. Spec. Nov. Regni Veg. 28: 310. 1930
Taxon for this namePlantago macrorhiza subsp. occidentalis in Repert. Spec. Nov. Regni Veg. 28: 310. 1930