Ophiorrhiza is a genus of flowering plants in the coffee family (Rubiaceae). It contains 378 species native to the Indian subcontinent, Indochina, China, Taiwan, Japan, Malesia, Papuasia, Queensland, and the South Pacific.[1] Species of the genus contain camptothecin, an alkaloid used to make chemotherapeutic agents.[2][3] Many Ophiorrhiza species are endemic to certain areas of the Western Ghats.
^Viraporn, V., et al. (2010). Correlation of camptothecin-producing ability and phylogenetic relationship in the genus Ophiorrhiza. Planta Med. in pub.
^Nakamura, K., et al. (2006). Phylogenetic systematics of the monotypic genus Hayataella (Rubiaceae) endemic to Taiwan. Journal of Plant Research 119:657โ661.
^Nakamura, K., et al. (2006). Homostyly and autogamy in Ophiorrhiza pumila (Rubiaceae) in the Ryukyu Archipelago. Journal of Japanese Botany 81:113โ120.
^"meenachilarensis". universityofflorence.medium.com. 30 November 2020. Retrieved 8 December 2020.