As of November 2024, Plants of the World Online accepts 949 species in the genus Cyperus. Other species have since been considered synonyms, been newly described, or seem to have been omitted from the website database at the time. See references.
The following taxa were accepted in The Plant List in 2015, but are no longer considered valid. • Cyperus cyrtolepis Torr. & Hook. – now Cyperus acuminatus • Cyperus involucratus Rottb. - now Cyperus alternifolius • Cyperus variabilis Salzm. ex Steud. – now Cyperus esculentus • Cyperus zanzibarensis C.B.Clarke - now Cyperus pulchellus ==References==