Thevetia
Thevetia is a genus of flowering plants in the dogbane family, Apocynaceae, first described for modern science as a genus in 1758. It is native to Mexico, Central America, South America, and Cuba. The taxonomy of the genus is controversial, with some authors including Cascabela within Thevetia, while others accept the two genera as separate.
Thevetia ahouai (L.) A.DC. - Mexico, Central America, Cuba, Venezuela, Colombia
Thevetia amazonica Ducke - Brazil, Bolivia
Thevetia bicornuta Müll.Arg. - Brazil, Paraguay, NE Argentina
Thevetia alliodora = Cascabela ovata
Thevetia cuneifolia = Cascabela ovata
Thevetia gaumeri = Cascabela gaumeri
Thevetia humboldtii (Kunth) Voigt 1845 not R.H. Schomb. 1840 = Cascabela thevetioides
Thevetia linearis = Cascabela thevetia
Thevetia neriifolia = Cascabela thevetia
Thevetia ovata = Cascabela ovata
Thevetia peruviana = Cascabela thevetia
Thevetia pinifolia = Cascabela pinifolia
Thevetia plumeriifolia = Cascabela ovata
Thevetia spathulata = Cascabela gaumeri