Cascabela is a genus of flowering plants in the dogbane family, Apocynaceae. It is native to Mexico, Central America, and South America.Alvarado-Cárdenas, L.O. & Ocheterena, H. (2007). A phylogenetic analysis of the Cascabelia-Thevetia species complex (Plumerieae, Apocynaceae) based on morphology. Annals of the Missouri Botanical Garden 94: 298-323.
Species , Plants of the World Online accepted the following species: Cascabela balsaensis L.O.Alvarado & J.C.Soto – Michoacán in Mexico Cascabela gaumeri (Hemsl.) Lippold - Veracruz, Tabasco, Yucatán Peninsula, Belize, Guatemala, Honduras, Nicaragua, Costa Rica Cascabela ovata (Cav.) Lippold - Central America, much of Mexico Cascabela pinifolia (Standl. & Steyerm.) L.O.Alvarado & Ochot.-Booth - C + S Mexico Cascabela thevetia (L.) Lippold - Latin America from N Mexico to NE Argentina Cascabela thevetioides (Kunth) Lippold - Mexico
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