Parahyparrhenia is a genus of Afro-Asian plants in the grass family.Camus, Aimée Antoinette. 1950. Bulletin du Muséum d'Histoire Naturelle, sér. 2 22: 404.Tropicos, Parahyparrhenia A.CamusGrassbase - The World Online Grass FloraClayton, William Derek 1972. Studies in the Gramineae: XXIX. Kew Bull. 27(3): 447–450. Globally, the genus comprises seven species. Two species are known to occur in India, where they are narrow endemic. The species show disjunct distribution in Africa and Asia. Parahyparrhenia bellariensis (Hack.) Clayton an extremely rare grass which was presumed extinct was rediscovered after 184 years from Andhra Pradesh, South India. Mr. Shahid Nawaz, an agrostologist at the Blatter Herbarium, recollected the specimens of P. bellariensis. The species following its rediscovery, was preliminary classified as Critically Endangered (CR) by adhering to the guidelines of IUCN Criteria and Category.
Recently, the genus was revised by Mr. Shahid Nawaz, an Indian agrostologist, who also reviewed African and Thai species.
SpeciesKew World Checklist of Selected Plant FamiliesThe Plant List search for Parahyparrhenia Parahyparrhenia annua (Hack.) Clayton - Sahara + Sahel regions of Africa Parahyparrhenia bellariensis (Hack.) Clayton - Andhra PradeshLandge, Shahid Nawaz (29 March 2022). "A taxonomic revision of the genus Parahyparrhenia (Poaceae: Andropogoneae) in India and review of African and Thai species". Phytotaxa. 541 (3): 247–260 – via Magnolia Press. Parahyparrhenia khannae A. P. Tiwari & Chorghe - Gujarat, Maharashtra, and Madhya Pradesh, India Parahyparrhenia laegaardii Veldkamp - Thailand Parahyparrhenia perennis Clayton - Burkina Faso, Guinea, Liberia, Senegal Parahyparrhenia siamensis Clayton - Thailand, Laos Parahyparrhenia tridentata Clayton - Thailand
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