Ephedra altissima subsp. nana Ball Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Gnetopsida order Ephedrales family Ephedraceae genus Ephedra species Ephedra altissima Name Homonyms Ephedra altissima var. nana Ball Ephedra altissima subsp. nana Ball