Orinus is a genus of Asian plants in the grass family.Hitchcock, Albert Spear 1933. Journal of the Washington Academy of Sciences 23: 135-136 descriptions in Latin and English in page 136, commentary in English; line drawing of Orinus arenicola on page 135Grassbase - The World Online Grass Flora The genome of O. kokonorica has been sequenced.

SpeciesKew World Checklist of Selected Plant FamiliesFlora of China Vol. 22 Page 464 固沙草属 gu sha cao shu Orinus Hitchcock, J. Wash. Acad. Sci. 23: 136. 1933 Orinus alticulmus L.B.Cai & Tong L.Zhang - Qinghai Orinus anomala Keng f. - Qinghai, Sichuan Orinus kokonorica (K.S.Hao) Keng - Gansu, Qinghai Orinus longiglumis X.Su & L.B.Cai - Tibet Orinus thoroldii (Stapf ex Hemsl.) Bor - Qinghai, Xinjiang, Tibet, Kashmir, Nepal, Uttarakhand, Kazakhstan, Kyrgyzstan, Uttar Pradesh Orinus tibeticus N.X.Zhao - Tibet

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