Rhamnus cathartica f. hydriensis (Hacq.) Rouy, 1897 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rhamnaceae genus Rhamnus species Rhamnus cathartica Name Homonyms Rhamnus cathartica subsp. hydriensis (Hacq.) Nyman Rhamnus cathartica var. hydriensis (Hacq.) P.Fourn. Rhamnus cathartica var. hydriensis (Hacq.) DC.