Orthotrichum perexiguum Dusén Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Orthotrichales family Orthotrichaceae genus Orthotrichum species Orthotrichum perexiguum Name Homonyms Orthotrichum perexiguum Dusén ex Lewinsky Orthotrichum perexiguum Dusén