Orinus

{{Short description|Genus of grasses}}

{{Automatic taxobox

|image =

|image_caption =

|display_parents = 3

|taxon = Orinus

|authority = Hitchc.

|type_species = Orinus arenicola
(syn of O. thoroldii)

|type_species_authority = Hitchc.

}}

Orinus is a genus of Asian plants in the grass family.[https://www.biodiversitylibrary.org/page/39917206#page/158/mode/1up 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 135[http://www.kew.org/data/grasses-db/www/gen00437.htm Grassbase - The World Online Grass Flora] The genome of O. kokonorica has been sequenced.{{Cite journal |last1=Qu |first1=Kunjing |last2=Liu |first2=Ai |last3=Yin |first3=Mou |last4=Mu |first4=Wenjie |last5=Wu |first5=Shuang |last6=Hu |first6=Hongyin |last7=Chen |first7=Jinyuan |last8=Su |first8=Xu |last9=Dou |first9=Quanwen |last10=Ren |first10=Guangpeng |date=2023-12-02 |title=A genome assembly for Orinus kokonorica provides insights into the origin, adaptive evolution and further diversification of two closely related grass genera |journal=Communications Biology |language=en |volume=6 |issue=1 |page=1223 |doi=10.1038/s42003-023-05620-5 |issn=2399-3642 |pmc=10693610 |pmid=38042963}}

; Species[http://apps.kew.org/wcsp/namedetail.do?name_id=426507 Kew World Checklist of Selected Plant Families][http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=123165 Flora 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