Erythrorchis is a genus of flowering plants from the orchid family, Orchidaceae. It contains 2 known and currently accepted species, native to East Asia, Southeast Asia and Australia.Erythrorchis altissima (Blume) Blume - Hainan, Taiwan, Cambodia, Assam, Indonesia, Ryukyu Islands, Laos, Malaysia, Myanmar, Philippines, Thailand, VietnamErythrorchis cassythoides (A.Cunn. ex Lindl.) Garay - Queensland, New South Wales↑ 1.0 1.1