Beier, B.-A.; Chase, M. W. & Thulin, M. (2003). "Phylogenetic relationships and taxonomy of subfamily Zygophylloideae (Zygophyllaceae) based on molecular and morphological data". Plant Systematics and Evolution. 240 (1–4): 11–39. doi:10.1007/s00606-003-0007-0. S2CID9299742.
Beier, B.-A.; Chase, M. W. & Thulin, M. (2003). "Phylogenetic relationships and taxonomy of subfamily Zygophylloideae (Zygophyllaceae) based on molecular and morphological data". Plant Systematics and Evolution. 240 (1–4): 11–39. doi:10.1007/s00606-003-0007-0. S2CID9299742.