Penstemon angustifolius Poir. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Plantaginaceae genus Penstemon species Penstemon campanulatus Name Homonyms Penstemon angustifolius Nutt. ex Pursh Penstemon angustifolius Nutt., 1813 Penstemon angustifolius Poir. Penstemon angustifolius (Kunth) F.Dietr.