Euphorbia macroceras SynonymySource: 2010: World Checklist of Selected Plant Families (2010), copyright © The Board of Trustees of the Royal Botanic Gardens, Kew.Euphorbia macroceras Fisch. & C. A. Mey. in Index Sem. Hort. Petrop. 4: 36. 1838 ["1837"]≡Tithymalus macroceras (Fisch. & C. A. Mey.) Klotzsch & Garcke in Abh. Königl. Akad. Wiss. Berlin 1859: 95. 1860ContentDistribution Bibliography Distribution Rf(CS) Tcs Tu(A) Euro+Med: Russia (North Caucasus nativeA); South Caucasus nativeA; Turkey (Turkey, Asiatic part nativeA) Bibliography A. Kew World Checklist of Selected Plant Families