Poa effusa Kit. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Oestr. Fl., ed. 2, 1: 227, 1814 Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Poa species Poa palustris Name Homonyms Poa effusa Kit. Poa effusa (Nees) Steud. Poa effusa Kit. ex Schult.