Carex ovata – synonym of Abildgaardia ovata
Catagyna pilosa – synonym of Afrotrilepis pilosa
Cyperus alternifolius – synonym of Cyperus involucratus
Cyperus alternifolius ssp. flabelliformis – synonym of Cyperus involucratus
Cyperus aristatus – synonym of Cyperus squarrosus
Cyperus auricomus – synonym of Cyperus digitatus
Cyperus baikiei – synonym of Cyperus tonkinensis
Cyperus buchholzii – synonym of Cyperus laxus
Cyperus compressus Linn. var. floribundus – synonym of Cyperus compressus
Cyperus cyperoides ssp. flavus – synonym of Cyperus cyperoides
Cyperus diffusus Vahl ssp. buchholzii – synonym of Cyperus laxus
Cyperus digitatus subsp. auricomus
Cyperus dives – synonym of Cyperus exaltatus
Cyperus exaltatus var. dives – synonym of Cyperus exaltatus
Cyperus nothovar. ×exaltatus var. Dives
Cyperus nothovar. ×exaltatus var. exaltatus
Cyperus fenzelianus – synonym of Cyperus longus
Cyperus flabelliformis – synonym of Cyperus involucratus
Cyperus ×guineensis nothovar. – synonym of Cyperus ×tenuiculmis nothovar. guineensis
Cyperus halpan – synonym of Cyperus haspan
Cyperus subsp. laxus ssp. subsp. Buchholzii
Cyperus margaritaceus var. nduru – synonym of Cyperus nduru
Cyperus maritimus – synonym of Cyperus crassipes
Cyperus subsp. michelianus ssp. subsp. Pygmaeus
Cyperus nothovar. ×niveus var. Tisserantii
Cyperus nudicaulis – synonym of Cyperus pectinatus
Cyperus pygmaeus – synonym of Cyperus michelianus
Cyperus rotundus Linn. ssp. tuberosus – synonym of Cyperus rotundus
Cyperus ×schweinfurthianus nothovar. – synonym of Cyperus ×tenuiculmis nothovar. scheinfurthianus
Cyperus sphacelatus var. tenuior – synonym of Cyperus zollingeri
Cyperus ×tenuiculmis nothovar. guineensis
Cyperus ×tenuiculmis nothovar. scheinfurthianus
Cyperus ×tenuiculmis nothovar. tenuiculmis
Cyperus tenuis var. luridus – synonym of Cyperus tenuis
Cyperus tisserantii . – synonym of Cyperus niveus
Cyperus nothovar. ×tonkinensis var. Baikiei
Cyperus triflorus – synonym of Abildgaardia triflora
Cyperus umbellatus – synonym of Cyperus cyperoides