Odontanthera is a genus of plants in the family Apocynaceae first described as a genus in 1883.Wight, Robert 1883. Madras Journal of Literature and Science 7: 143.Tropicos, genus Odontanthera It contains only one recognized species, Odontanthera radians, a rare plant native to the shores of the Red Sea.Field, D.W. 1982. The Identity of Odontanthera Wight (Asclepiadaceae) with Notes on Glossonema Decne. and Conomitra Fenzl. Kew Bulletin Vol. 37, No. 2 (1982), pp. 341-347

formerly includedThe Plant List, genus Odontanthera moved to other genera (Conomitra, Glossonema) O. boveana now Glossonema boveanum O. linearis now Conomitra linearis O. thruppii now Glossonema thruppii O. varians now Glossonema varians

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