Cerastium edmondstonei var. caespitosum Dusén Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Caryophyllaceae genus Cerastium species Cerastium arcticum Name Homonyms Cerastium edmondstonei var. caespitosum Dusén