Ephedra nevadensis subvar. paucibracteata Stapf Dataset GBIF Backbone Taxonomy Rank SUBVARIETY Classification kingdom Plantae phylum Gnetophyta class Gnetopsida order Ephedrales family Ephedraceae genus Ephedra species Ephedra nevadensis Name Homonyms Ephedra nevadensis subsp. paucibracteata Stapf