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Cyathophora Raf.
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Yang, Y., R. Riina, J. J. Morawetz, T. Haevermans, X. Aubriot & P. E. Berry. 2012. Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce. Taxon 61(4): 764–789.
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Euphorbia subg. Pleuradena (Raf.) Croizat
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Yang, Y., R. Riina, J. J. Morawetz, T. Haevermans, X. Aubriot & P. E. Berry. 2012. Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce. Taxon 61(4): 764–789.
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Euphorbia subg. Poinsettia (Graham) House
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Yang, Y., R. Riina, J. J. Morawetz, T. Haevermans, X. Aubriot & P. E. Berry. 2012. Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce. Taxon 61(4): 764–789.
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Pleuradena Raf.
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Yang, Y., R. Riina, J. J. Morawetz, T. Haevermans, X. Aubriot & P. E. Berry. 2012. Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce. Taxon 61(4): 764–789.
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Poinsettia Graham
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Flora of North America Editorial Committee. 2016. Magnoliophyta: Vitaceae to Garryaceae. 12: i–xxiv, 1–603. In Fl. N. Amer.. Oxford University Press, New York.
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Yang, Y., R. Riina, J. J. Morawetz, T. Haevermans, X. Aubriot & P. E. Berry. 2012. Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce. Taxon 61(4): 764–789.
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