Barbula acuta var. viridis (Hook. & Grev.) Guim. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Didymodon species Didymodon rigidulus Name Homonyms Barbula acuta var. viridis (Hook. & Grev.) Guim. Barbula acuta f. viridis (Hook. & Grev.) Podp.