Peronospora polygoni Thüm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Oomycota class Peronosporea order Peronosporales family Peronosporaceae genus Peronospora species Peronospora polygoni Name Homonyms Peronospora polygoni Halst. Peronospora polygoni (Thüm.) A.Fisch. Peronospora polygoni Thüm.