Penstemon alpinus subsp. magnus (Pennell) H.D.Harr. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Plantaginaceae genus Penstemon species Penstemon glaber Name Homonyms Penstemon alpinus subsp. magnus (Pennell) Penland Penstemon alpinus subsp. magnus (Pennell) H.D.Harr.