Isoetes humilior F.Muell. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Lycopodiopsida order Isoetales family Isoetaceae genus Isoetes species Isoetes humilior Name Homonyms Isoetes humilior F.Muell. ex A.Braun Isoetes humilior F.Muell.