Tanacetum oligocephalum (DC.) Sch. Bip., Tanaceteen: 48. 1844 Tanacetum oligocephalum (DC.) Sch. Bip., Tanaceteen: 48. 1844is new combination for Pyrethrum oligocephalum DC., Prodr. 7: 297. 1838Taxon for this nameTanacetum oligocephalum (DC.) Sch. Bip., Tanaceteen: 48. 1844