Spongiosperma is a genus of plant in family Apocynaceae first described as a genus in 1988. It is native to the South America, nations of Venezuela, Colombia, and Brazil.Kew World Checklist of Selected Plant FamiliesHokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
Species Spongiosperma cataractarum Zarucchi - Bolívar State in SE Venezuela Spongiosperma grandiflorum (Huber) Zarucchi - Amapá, Pará, Maranhão Spongiosperma longilobum (Markgr.) Zarucchi - Amazonas State in NW Brazil Spongiosperma macrophyllum (Müll.Arg.) Zarucchi - S Venezuela, SE Colombia, NW Brazil Spongiosperma oleifolium (Monach.) Zarucchi - Amazonas State in S Venezuela Spongiosperma riparium (Monach.) Zarucchi - S Venezuela, SE Colombia
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