Carex tsoi

{{Short description|Species of sedge in the family Cyperaceae}}

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|genus=Carex

|species=tsoi

|authority=Merr. & Chun

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Carex tsoi is a species of sedge in the family Cyperaceae, native to Hainan, China.{{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:302747-1 |title=Carex tsoi Merr. & Chun |author= |date=2017 |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=16 August 2022 }} It was formerly thought to be in section Radicales.{{cite journal |title=A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles |year=2021 |last1=Roalson |first1=Eric H. |last2=Jiménez‐Mejías |first2=Pedro |last3=Hipp |first3=Andrew L. |last4=Benítez‐Benítez |first4=Carmen |last5=Bruederle |first5=Leo P. |last6=Chung |first6=Kyong‐Sook |last7=Escudero |first7=Marcial |last8=Ford |first8=Bruce A. |last9=Ford |first9=Kerry |last10=Gebauer |first10=Sebastian |last11=Gehrke |first11=Berit |last12=Hahn |first12=Marlene |last13=Hayat |first13=Muhammad Qasim |last14=Hoffmann |first14=Mathias H. |last15=Jin |first15=Xiao‐Feng |last16=Kim |first16=Sangtae |last17=Larridon |first17=Isabel |last18=Léveillé‐Bourret |first18=Étienne |last19=Lu |first19=Yi‐Fei |last20=Luceño |first20=Modesto |last21=Maguilla |first21=Enrique |last22=Márquez‐Corro |first22=Jose Ignacio |last23=Martín‐Bravo |first23=Santiago |last24=Masaki |first24=Tomomi |last25=Míguez |first25=Mónica |last26=Naczi |first26=Robert F. C. |last27=Reznicek |first27=Anton A. |last28=Spalink |first28=Daniel |last29=Starr |first29=Julian R. |last30=Uzma |journal=Journal of Systematics and Evolution |volume=59 |issue=4 |pages=726–762 |doi=10.1111/jse.12722 |s2cid=234380025 |doi-access=free }}