Senecio aquaticus subsp. pennatifidus Gren. & Godr. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Jacobaea species Jacobaea erratica Name Homonyms Senecio aquaticus subsp. pennatifidus Gren. & Godr.