Polytrichum angusticaule Müll.Hal. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Polytrichopsida order Polytrichales family Polytrichaceae genus Polytrichum species Polytrichum juniperinum Name Homonyms Polytrichum angusticaule Müll.Hal. ex E.Britton Polytrichum angusticaule Müll.Hal.