Calamogrostis epigejos (Linn.) Roth
Calamogrostis mannii (Hook. f.) Engl. – synonym of Agrostis mannii (Hook. f.) Stapf
Calamogrostis phleoides Pilg. – synonym of Gastridium phleoides (Nees & Meyen) C.E. Hubb.
Capillipedium parviflorum (R. Br.) Stapf
Castellia tuberculosa (Moris) Bor
Catapodium tuberculosum Moris – basionym of Castellia tuberculosa (Moris) Bor
Cenchris granularis Linn. – basionym of Hackelochloa granularis (Linn.) Kuntze
Cenchrus lappaceus Linn. – basionym of Centotheca lappacea ((Linn.) Desv.)
Cenchrus racemosus Linn. – basionym of Tragus racemosus (Linn.) All.
Centotheca lappacea ((Linn.) Desv.)
Centotheca latifolia Trin. – synonym of Centotheca lappacea ((Linn.) Desv.)
Centropodia forsskalii (Vahl) Cope
Centropodia fragilis (Guinet & Sauvage) Cope
Chaetaria lamarckii Roem. & Schult. – synonym of Aristida stipoides Lam.
Chasmopodium afzelii (Hack.) Stapf – synonym of Chasmopodium caudatum (Hack.) Stapf
Chasmopodium caudatum (Hack.) Stapf
Chasmopodium purpurascens (Robyns) Clayton – synonym of Rottboellia purpurascens Robyns
Chloachne secunda Stapf – synonym of Poecilostachys oplismenoides (Hack.) Clayton
Chloris abyssinica Hochst. ex A. Rich. – synonym of Chloris gayana Kunth
Chloris breviseta Benth. – synonym of Chloris pilosa Schumach.
Chloris cenchriformis (A. Rich.) Baill. – synonym of Tetrapogon cenchriformis (A. Rich.) W.D. Clayton
Chloris cryptostachya J.A. Schmidt – synonym of Enteropogon prieurii (Kunth) Clayton
Chloris flagellifera (Nees) Peterson
Chloris inflata – synonym of Chloris barbata Sw.
Chloris intermedia A. Rich. – synonym of Chloris pycnothrix Trin.
Chloris lamproparia Stapf – basionym of Stapfochloa lamproparia (Stapf) H. Scholz
Chloris leptostachya (Hochst. ex A. Rich. – synonym of Chloris pycnothrix Trin.
Chloris macrostachya A. Rich. – basionym of Enteropogon macrostachyus (Hochst. ex A.Rich.) Munro ex Bentham
Chloris nigra Hack. – synonym of Chloris pilosa Schumach.
Chloris nutans (Stapf) Peterson
Chloris parva Mimeur – synonym of Enteropogon prieurii (Kunth) Clayton
Chloris prieurii Kunth – basionym of Enteropogon prieurii (Kunth) Clayton
Chloris pulchra – synonym of Ctenium canescens
Chloris punctulata Steud. – synonym of Enteropogon prieurii (Kunth) Clayton
Chloris roxburghiana Schult. – synonym of Tetrapogon roxburghiana (Schult.) Peterson
Chloris simplex Schumach. – synonym of Enteropogon macrostachyus (Hochst. ex A.Rich.) Munro ex Bentham
Chloris subtriflora Steud. – synonym of Chloris pilosa Schumach.
Chloris subtriflora Steud. – synonym of Enteropogon prieurii (Kunth) Clayton
Chloris tenellus J. Koenig ex Roxb. – basionym of Tetrapogon tenellus (J.Koenig ex Roxb.) Chiov.
Chloris transiens Pilg. – basionym of Schoenefeldia transiens (Pilg.) Chiov.
Chrysochloa annua C.E. Hubb. – synonym of Chrysochloa hindsii C.E. Hubb.
Chrysochloa caespitosa Clayton – synonym of Chrysochloa hindsii C.E. Hubb.
Chrysochloa hindsii C.E. Hubb.
Chrysopogon aciculatus (Retz.) Trin.
Chrysopogon aucheri quinqueplumis (A. Rich.) Stapf – synonym of Chrysopogon plumulosus Hochst.
Chrysopogon fulvibarbis (Trin.) Veldkamp
Chrysopogon nigritanus (Benth.) Veldkamp
Chrysopogon plumulosus Hochst.
Chrysopogon quinqueplumis A. Rich. – synonym of Chrysopogon plumulosus Hochst.
Chrysopogon zizanoides (Linn.) Roberty
Cleistachne macrantha Stapf – synonym of Sorghum sorghoides (Benth.) Liu & Peterson
Cleistachne sorghoides Benth. – basionym of Sorghum sorghoides (Benth.) Liu & Peterson
Cloachne oplismenoides (Hack.) Robyns – synonym of Poecilostachys oplismenoides (Hack.) Clayton
Coelachne fastigiata Roberty – synonym of Diectomis fastigiata (Sw.) P. Beauv.
Coelachne occidentalis Jacq.-Fél. – synonym of Isachne angolensis Rendle
Coelachyrum brevifolium Hochst. ex Steud.
Coelachyrum oligibrachiatum A. Camus – synonym of Coelachyrum brevifolium Hochst. ex Steud.
Coelorachys afraurita (Stapf) Stapf – synonym of Rottboellia afraurita Stapf
Commelidium gabunense (Franch.) Stapf – synonym of Acroceras gabunense (Hack.) Clayton
Commelidium nervosum Stapf – synonym of Acroceras gabunense (Hack.) Clayton
Crinipes longifolius C.E. Hubb.
Crossotropis mollis (Kunth) Stapf – synonym of Trichoneura mollis (Kunth) Ekman
Crypsis aculeata (Linn.) Aiton – synonym of Sporobolus aculeatus (Linn.) Peterson
Crypsis compacta Steud. – synonym of Sporobolus niliacus (Fig. & De Not.) Peterson
Crypsis schoenoides (Linn.) Lam. – synonym of Sporobolus schoenoides (Linn.) Peterson
Crypsis vaginiflora (Forssk.) Opiz – synonym of Sporobolus niliacus (Fig. & De Not.) Peterson
Ctenium nubicum somalense Chiov. – synonym of Ctenium concinnum Nees
Ctenium rupestre Schmidt – basionym of Enteropogon rupestris (Schmidt) A. Chev.
Ctenium somalense (Chiov.) Chiov.) – synonym of Ctenium concinnum Nees
Cutandia dichotoma (Forssk.) Trab.
Cutandia memphitica (Spreng.) Benth.
Cymbopgon solutus Stapf – synonym of Hyparrhenia bagirmica (Stapf) Stapf
Cymbopogon acutispicatus De Wild. – synonym of Hyparrhenia variabilis Stapf
Cymbopogon afronardus Stapf – synonym of Cymbopogon nardus (Linn.) Rendle
Cymbopogon afronardus Stapf – synonym of Cymbopogon nervatus (Hochst.) Chiov.
Cymbopogon bagirmica Stapf – basionym of Hyparrhenia bagirmica (Stapf) Stapf
Cymbopogon caesius (Nees ex Hook. & Arn.) Stapf
Cymbopogon caesius subsp. caesius
Cymbopogon caesius subsp. giganteus (Chiov.) Sales
Cymbopogon caesius martini (Roxb.) Hook.f. – synonym of Cymbopogon martini (Roxb.) Watson
Cymbopogon chrysargyreus Stapf – synonym of Hyparrhenia nyassae (Rendle) Stapj
Cymbopogon collinus Pilg. – basionym of Hyparrhenia collina (Pilg.) Stapf
Cymbopogon communatus (Steud.) Stapf
Cymbopogon cyanescens Stapf – basionym of Hyparrhenia cyanescens (Stapf) Stapf
Cymbopogon cymbaria (Linn.) T. Thoms. – synonym of Hyparrhenia cymbaria (Linn.) Stapf
Cymbopogon densiflorus (Steud.) Stapf
Cymbopogon exarmatus Stapf – basionym of Hyparrhenia exarmata ((Stapf) Stapf)
Cymbopogon excavatus (Hochst.) Stapf – synonym of Cymbopogon caesius (Nees ex Hook. & Arn.) Stapf
Cymbopogon familiaris (Steud.) De Wild. – synonym of Hyparrhenia familiaris (Steud.) Stapf
Cymbopogon figarianus Chiov. – basionym of Hyparrhenia figariana (Chiov.) Clayton
Cymbopogon filipendulus (Hochst.) Rendle – synonym of Hyparrhenia filipendula (Hochst) Stapf
Cymbopogon finitinus (Hochst.) Thomson – synonym of Hyparrhenia finitima (Hochst.) Anderss. ex Stapf
Cymbopogon floccosus (Schweinf.) Stapf – synonym of Cymbopogon communatus (Steud.) Stapf
Cymbopogon gazensis Rendle – basionym of Hyparrhenia gazensis (Rendle) Stapf
Cymbopogon giganteus Chiov. – synonym of Cymbopogon caesius subsp. giganteus (Chiov.) Sales
Cymbopogon ×giganteus nothovar. giganteus
Cymbopogon giganteus subsp. inermis Clayton – synonym of Cymbopogon caesius subsp. giganteus (Chiov.) Sales
Cymbopogon nothovar. ×giganteus var. inermis – synonym of Cymbopogon ×giganteus nothovar. giganteus
Cymbopogon kapandensis Vanderijst – synonym of Hyparrhenia diplandra (Hackel) Stapf
Cymbopogon luembensis De Wild. – synonym of Hyparrhenia dregeana (Nees) Stapf ex Stent
Cymbopogon martini (Roxb.) Watson
Cymbopogon modicus De Wild. – synonym of Hyparrhenia hirta (Linn.) Stapf
Cymbopogon nardus (Linn.) Rendle
Cymbopogon nervatus (Hochst.) Chiov.
Cymbopogon pilosovaginatus De Wild. – synonym of Hyparrhenia bracteata (Willd.) Stapf
Cymbopogon princeps Stapf – synonym of Hyparrhenia dybowskii (Franch.) Roberty
Cymbopogon proximus – synonym of Cymbopogon schoenanthus subsp. proximus
cymbopogon rufus (Nees) Kunth – synonym of Hyparrhenia rufa (Nees) Stapf
Cymbopogon scabrimarginatus De Wild. – synonym of Hyparrhenia collina (Pilg.) Stapf
Cymbopogon schimperi (Hochst. ex A. Rich.) Rendle – synonym of Hyparrhenia schimperi (Hochst. ex A. Rich.) Andersson ex Stapf
Cymbopogon schoenanthus (Linn.) Spreng.
Cymbopogon schoenanthus subsp. proximus
Cymbopogon schoenanthus subsp. schoenanthus
Cymbopogon stolzii Pilg. – synonym of Hyparrhenia pilgeriana C.E. Hubb.
Cymbopogon validus (Stapf) Burtt-Davey – synonym of Cymbopogon nardus (Linn.) Rendle
Cymbopogon welwitschii Rendle – basionym of Hyparrhenia welwitschii (Rendle) Stapf
Cymbopogon winterianus Jowitt ex Bor
Cynodon aethiopicus Clayton & Harland
Cynodon dactylon (Linn.) Pers.
Cynodon nlemfuensis robustus Clayton & Harlan – synonym of Cynodon nlemfuensis Vanderyst
Cynodon plectostachyus (K. Schum.) Pilg.
Cynodon plectostachyus (K. Schum.) Pilg. – synonym of Cynodon plectostachyus (K. Schum.) Pilg.
Cynodon ternatus A. Rich. – basionym of Digitaria ternata (A.Rich.) Stapf
Cynodon transvaalensis Burtt Davy
Cynosurus aegyptius Linn. – basionym of Dactyloctenium aegyptium (Linn.) Willd.
Cynosurus aurea Linn. – basionym of Lamarckia aurea (Linn.) Moench
Cynosurus coracanus Linn. – basionym of Eleusine coracana (Linn.) Gaertner
Cynosurus indicus – synonym of Eleusine indica
Cynosurus paspaloides Vahl – basionym of Eustachys paspaloides (Vahl) Lanza & Mattei
Cynosurus retroflexus Vahl – basionym of Dinebra retroflexa (Vahl) Panzer