Hypnum prolixum Dicks. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Hypnales family Brachytheciaceae genus Rhynchostegium species Rhynchostegium riparioides Name Homonyms Hypnum prolixum Dicks. ex Brid. Hypnum prolixum Dicks. Hypnum prolixum Vill. ex Brid. Hypnum prolixum Vill.