Thalictrum nigricans Rchb. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ranunculales family Ranunculaceae genus Thalictrum species Thalictrum nigricans Name Homonyms Thalictrum nigricans DC. Thalictrum nigricans Jacq. Thalictrum nigricans Scop. Thalictrum nigricans Rchb. ex Lecoy. Thalictrum nigricans Rchb.