Trichostomum viridulum f. brevifolium J.J.Amann Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Gymnobarbula species Gymnobarbula bicolor Name Homonyms Trichostomum viridulum f. brevifolium J.J.Amann