Isoetes variabilis f. boryana (Durieu) Rouy, 1913 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Lycopodiopsida order Isoetales family Isoetaceae genus Isoetes species Isoetes boryana Name Homonyms Isoetes variabilis subsp. boryana (Durieu) P.E.Fourn.