For Sarcomphalus
Hauenschild, F., S. Matuszak, A.N. Muellner-Riehl, and A. Favre. 2016a. Phylogenetic relationships within the cosmopolitan buckthorn family (Rhamnaceae) support the resurrection of Sarcomphalus and the description of Pseudoziziphus gen. nov. Taxon 65: 47-64.
Nesom, G.L. 2016l. Ziziphus. In Flora of North America Editorial Committee. 2016. Flora of North America north of Mexico. Volume 12, Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York, NY. 603 pp.
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