"Genus: Cercis L."Germplasm Resources Information Network. United States Department of Agriculture. 2011-04-17. Archived from the original on 2008-10-15. Retrieved 2011-09-28.
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Jia H, Manchester SR (2014). "Fossil leaves and fruits of Cercis L. (Leguminosae) from the Eocene of western North America". International Journal of Plant Sciences. 175 (5): 601–612. doi:10.1086/675693. JSTOR10.1086/675693. S2CID84535035.
"ILDIS LegumeWeb entry for Cercis". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 8 May 2014.
Jia H, Manchester SR (2014). "Fossil leaves and fruits of Cercis L. (Leguminosae) from the Eocene of western North America". International Journal of Plant Sciences. 175 (5): 601–612. doi:10.1086/675693. JSTOR10.1086/675693. S2CID84535035.
Jia H, Manchester SR (2014). "Fossil leaves and fruits of Cercis L. (Leguminosae) from the Eocene of western North America". International Journal of Plant Sciences. 175 (5): 601–612. doi:10.1086/675693. JSTOR10.1086/675693. S2CID84535035.
"Genus: Cercis L."Germplasm Resources Information Network. United States Department of Agriculture. 2011-04-17. Archived from the original on 2008-10-15. Retrieved 2011-09-28.