Oxystophyllum is a genus of flowering plant in the family Orchidaceae, native from Indo-China and Hainan to Papuasia. The genus was established by Carl Ludwig Blume in 1825.

Species , Plants of the World Online accepted the following species: Image Name Distribution Elevation (m) Oxystophyllum acianthum New Guinea Oxystophyllum ambotiense Moluccas Islands Oxystophyllum araneum New Guinea Oxystophyllum atropurpureum Myanmar, Malaysia, Java, the Moluccas, Sulawesi and New Guinea Oxystophyllum atrorubens Borneo and Malaysia Oxystophyllum bipulvinatum Papua (Nabire Regency) Oxystophyllum buruense Maluku (Buru), New Guinea Oxystophyllum carnosum Borneo, Cambodia, Jawa, Malaya, Myanmar, Sumatera, Thailand, Vietnam, Laos Oxystophyllum changjiangense China (Hainan) Oxystophyllum cultratum Sulawesi and the Philippines Oxystophyllum cuneatipetalum Sumatera Oxystophyllum deliense Sumatra Oxystophyllum elmeri Philippines Oxystophyllum excavatum Cambodia, Malaysia, Borneo, Java, Lesser Sunda Islands, Moluccas, Sumatra and New Guinea Oxystophyllum floridanum Solomon Islands Oxystophyllum govidjoae New Guinea Oxystophyllum hagerupii Sumatra Oxystophyllum helvolum Borneo Oxystophyllum hypodon Sulawesi Oxystophyllum kaudernii Sulawesi Oxystophyllum lepoense Sulawesi Oxystophyllum lockhartioides Sulawesi Oxystophyllum longipecten Sumatra Oxystophyllum minutigibbum Sumatra Oxystophyllum moluccense Maluku (Ambon) Oxystophyllum nitidiflorum New Guinea Oxystophyllum oblongum Sabah, Kalimantan and Sarawak Oxystophyllum oligadenium Sulawesi Oxystophyllum paniferum Java Oxystophyllum sinuatum Thailand, Malaysia, Sumatra Oxystophyllum speculigerum Sulawesi Oxystophyllum subsessile Papua, New Guinea Oxystophyllum torricellianum New Guinea Oxystophyllum tropidoneuron Sumatra Oxystophyllum tumoriferum New Guinea, Solomon Islands Oxystophyllum validipecten Sumatra

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