Sphagnum girgensohnii var. robustum (Russ.) Dix. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Bryophyta class Sphagnopsida order Sphagnales family Sphagnaceae genus Sphagnum species Sphagnum russowii Name Homonyms Sphagnum girgensohnii var. robustum Warnst. Sphagnum girgensohnii var. robustum (Russ.) Dix.