Oncinema is a genus of plants in the family Apocynaceae first described as a genus in 1834.Tropicos, genus OncinemaArnott, George Arnott Walker. 1834. Edinburgh New Philosophical Journal 17: 261 description in Latin, commentary in English. It contains only one known species, Oncinema lineare , native to South Africa.The Plant List, genus OncinemaGibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).
