Oxypetalum is a genus of flowering plants in the family Apocynaceae, first described with this name in 1810.Brown, Robert. 1810. On the Asclepiadeae 30. The genus is native to South America.Forzza, R. C. 2010. Lista de espécies Flora do Brasil http://floradobrasil.jbrj.gov.br/2010 . Jardim Botânico do Rio de Janeiro, Rio de JaneiroZuloaga, F. O., O. Morrone, M. J. Belgrano, C. Marticorena & E. Marchesi. (eds.) 2008. Catálogo de las plantas vasculares del Cono Sur. Monographs in systematic botany from the Missouri Botanical Garden 107(1–3): i–xcvi, 1–3348.Wood, J. R. I., F. Mamani M., P. Pozo, J. D. Soto & D. Villarroel Segarra. (eds.) 2011. Guía Darwin de las plantas de los cerrados de la Chiquitania 1–212. Museo de Historia Natural Noel Kempff Mercado, Santa CruzFunk, V. A., P. E. Berry, S. Alexander, T. H. Hollowell & C. L. Kelloff. 2007. Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium 55: 1–584
Oxypetalum coeruleum is cultivated as an ornamental.
Species , Plants of the World Online accepted the following species:
formerly includedThe Plant List, genus Oxypetalum moved to other genera (Cynanchum, Morrenia, Philibertia, Tassadia, Tweedia)
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