Echinochloa crus-galli subsp. purpurea (Pursh) Farw. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Echinochloa species Echinochloa crus-galli Name Homonyms Echinochloa crus-galli f. purpurea (Pursh) Farw. Echinochloa crus-galli subsp. purpurea (Pursh) Farw.