Synonyms: Ageratina bimatra; Eupatorium berterianum; Eupatorium berteroanum; Eupatorium bimatrum; Eupatorium guadalupense; Eupatorium guadalupense var. gardneri; Eupatorium guadalupense var. guadalupense; Eupatorium guadalupense var. wydlerianum; Eupatorium microstemon (homotypic); Eupatorium microstemon var. albiflorum; Eupatorium microstemon var. lilacinum; Eupatorium microstemon var. microstemon; Eupatorium microstemon var. perennans; Eupatorium paniculatum (heterotypic); Eupatorium urticaefolium (homotypic); Eupatorium urticifolium (heterotypic); Eupatorium violaceum (heterotypic); Kyrstenia guadalupensis; Mikania berteriana; Mikania berteroana