| Aakia J. R. Grande | | a | | Aakia J. R. Grande | | Poaceae |
| Acicarpa Raddi | Digitaria Haller | | | Acicarpa Raddi | Digitaria Haller | Poaceae |
| Aconisia J. R. Grande | Hymenachne P. Beauv. | | | Aconisia J. R. Grande | Hymenachne P. Beauv. | Poaceae |
| Acostia Swallen | | a | | Acostia Swallen | | Poaceae |
| Acratherum Link | Arundinella Raddi | | | Acratherum Link | Arundinella Raddi | Poaceae |
| Acritochaete Pilg. | | a | | Acritochaete Pilg. | | Poaceae |
| Acroceras Stapf | | a | | Acroceras Stapf | | Poaceae |
| Acroelytrum Steud. | Lophatherum Brongn. | | | Acroelytrum Steud. | Lophatherum Brongn. | Poaceae |
| Acrochaete Peter | Setaria P. Beauv. | | | Acrochaete Peter | Setaria P. Beauv. | Poaceae |
| Adenochloa Zuloaga | | a | | Adenochloa Zuloaga | | Poaceae |
| Aethonopogon Kuntze, nom. inval. | Polytrias Hack. | | | Aethonopogon Kuntze, nom. inval. | Polytrias Hack. | Poaceae |
| Agenium Nees | | a | | Agenium Nees | | Poaceae |
| Aglycia Steud., nom. inval. | Eriochloa Kunth | | | Aglycia Steud., nom. inval. | Eriochloa Kunth | Poaceae |
| Achlaena Griseb. | | a | | Achlaena Griseb. | | Poaceae |
| Aikinia Wall. | Mnesithea Kunth | | | Aikinia Wall. | Mnesithea Kunth | Poaceae |
| Alectoridia A. Rich. | Arthraxon P. Beauv. | | | Alectoridia A. Rich. | Arthraxon P. Beauv. | Poaceae |
| Alexfloydia B. K. Simon | | a | | Alexfloydia B. K. Simon | | Poaceae |
| Allelotheca Steud. | Lophatherum Brongn. | | | Allelotheca Steud. | Lophatherum Brongn. | Poaceae |
| Alloeochaete C. E. Hubb. | | a | | Alloeochaete C. E. Hubb. | | Poaceae |
| Alloteropsis J. Presl | | a | | Alloteropsis J. Presl | | Poaceae |
| Altoparadisium Filg. et al. | | a | | Altoparadisium Filg. et al. | | Poaceae |
| Alycia Steud., nom. inval. | Eriochloa Kunth | | | Alycia Steud., nom. inval. | Eriochloa Kunth | Poaceae |
| Amblyachyrum Steud. | Apocopis Nees | | | Amblyachyrum Steud. | Apocopis Nees | Poaceae |
| Amphicarpum Kunth | | a | | Amphicarpum Kunth | | Poaceae |
| Amphilophis (Trin.) Nash | Bothriochloa Kuntze | | | Amphilophis (Trin.) Nash | Bothriochloa Kuntze | Poaceae |
| Amphochaeta Andersson | Cenchrus L. | | | Amphochaeta Andersson | Cenchrus L. | Poaceae |
| Anadelphia Hack. | | a | | Anadelphia Hack. | | Poaceae |
| Anachyris Nees | Paspalum L. | | | Anachyris Nees | Paspalum L. | Poaceae |
| Anachyrium Steud., orth. var. | Paspalum L. | | | Anachyrium Steud., orth. var. | Paspalum L. | Poaceae |
| Anastrophus Schltdl. | Axonopus P. Beauv. | | | Anastrophus Schltdl. | Axonopus P. Beauv. | Poaceae |
| Anatherum P. Beauv. | Andropogon L. | | | Anatherum P. Beauv. | Andropogon L. | Poaceae |
| Ancistrachne S. T. Blake | | a | | Ancistrachne S. T. Blake | | Poaceae |
| Andropogon L. | | a | | Andropogon L. | | Poaceae |
| Andropterum Stapf | | a | | Andropterum Stapf | | Poaceae |
| Androscepia Brongn. | Themeda Forssk. | | | Androscepia Brongn. | Themeda Forssk. | Poaceae |
| Anthaenantia P. Beauv., orth. var. | Anthenantia P. Beauv. | | | Anthaenantia P. Beauv., orth. var. | Anthenantia P. Beauv. | Poaceae |
| Anthaenantiopsis Mez ex Pilg. | | a | | Anthaenantiopsis Mez ex Pilg. | | Poaceae |
| Anthenantia P. Beauv. | | a | | Anthenantia P. Beauv. | | Poaceae |
| Anthephora Schreb. | | a | | Anthephora Schreb. | | Poaceae |
| Anthistiria L. f. | Themeda Forssk. | | | Anthistiria L. f. | Themeda Forssk. | Poaceae |
| Apluda L. | | a | | Apluda L. | | Poaceae |
| Apocopis Nees | | a | | Apocopis Nees | | Poaceae |
| Apogonia (Nutt.) E. Fourn. | Mnesithea Kunth | | | Apogonia (Nutt.) E. Fourn. | Mnesithea Kunth | Poaceae |
| Apochaete (C. E. Hubb.) J. B. Phipps | Tristachya Nees | | | Apochaete (C. E. Hubb.) J. B. Phipps | Tristachya Nees | Poaceae |
| Apochloa Zuloaga & Morrone | | a | | Apochloa Zuloaga & Morrone | | Poaceae |
| Argopogon Mimeur | Ischaemum L. | | | Argopogon Mimeur | Ischaemum L. | Poaceae |
| Aristaria Jungh. | Themeda Forssk. | | | Aristaria Jungh. | Themeda Forssk. | Poaceae |
| Arthragrostis Lazarides | Panicum L. | | | Arthragrostis Lazarides | Panicum L. | Poaceae |
| Arthraxon P. Beauv. | | a | | Arthraxon P. Beauv. | | Poaceae |
| Arthrolophis (Trin.) Chiov. | Andropogon L. | | | Arthrolophis (Trin.) Chiov. | Andropogon L. | Poaceae |
| Arthropogon Nees | | a | | Arthropogon Nees | | Poaceae |
| Arthrostachys Desv. | Andropogon L. | | | Arthrostachys Desv. | Andropogon L. | Poaceae |
| Arundinella Raddi | | a | | Arundinella Raddi | | Poaceae |
| Arundoclaytonia Davidse & R. P. Ellis | | a | | Arundoclaytonia Davidse & R. P. Ellis | | Poaceae |
| Asthenochloa Büse | | a | | Asthenochloa Büse | | Poaceae |
| Athrolophis (Trin.) Chiov., orth. var. | Andropogon L. | | | Athrolophis (Trin.) Chiov., orth. var. | Andropogon L. | Poaceae |
| Aulaxanthus Elliott | Anthenantia P. Beauv. | | | Aulaxanthus Elliott | Anthenantia P. Beauv. | Poaceae |
| Aulaxia Nutt. | Anthenantia P. Beauv. | | | Aulaxia Nutt. | Anthenantia P. Beauv. | Poaceae |
| Axonopus P. Beauv. | | a | | Axonopus P. Beauv. | | Poaceae |
| Balansochloa Kuntze | Germainia Balansa & Poitr. | | | Balansochloa Kuntze | Germainia Balansa & Poitr. | Poaceae |
| Baptorhachis Clayton & Renvoize | Paspalum L. | | | Baptorhachis Clayton & Renvoize | Paspalum L. | Poaceae |
| Batratherum Nees | Arthraxon P. Beauv. | | | Batratherum Nees | Arthraxon P. Beauv. | Poaceae |
| Beckera Fresen. | Cenchrus L. | | | Beckera Fresen. | Cenchrus L. | Poaceae |
| Beckeropsis Fig. & De Not. | Cenchrus L. | | | Beckeropsis Fig. & De Not. | Cenchrus L. | Poaceae |
| Berghausia Endl. | Garnotia Brongn. | | | Berghausia Endl. | Garnotia Brongn. | Poaceae |
| Berchtoldia C. Presl | Chaetium Nees | | | Berchtoldia C. Presl | Chaetium Nees | Poaceae |
| Bhidea Stapf ex Bor | | a | | Bhidea Stapf ex Bor | | Poaceae |
| Bifaria (Hack.) Kuntze | Mesosetum Steud. | | | Bifaria (Hack.) Kuntze | Mesosetum Steud. | Poaceae |
| Bluffia Nees | Alloteropsis J. Presl | | | Bluffia Nees | Alloteropsis J. Presl | Poaceae |
| Blumenbachia Koeler | Sorghum Moench | | | Blumenbachia Koeler | Sorghum Moench | Poaceae |
| Boivinella A. Camus | Cyphochlaena Hack. | | | Boivinella A. Camus | Cyphochlaena Hack. | Poaceae |
| Bothriochloa Kuntze | | a | | Bothriochloa Kuntze | | Poaceae |
| Brachiaria (Trin.) Griseb. | | a | | Brachiaria (Trin.) Griseb. | | Poaceae |
| Brandtia Kunth | Arundinella Raddi | | | Brandtia Kunth | Arundinella Raddi | Poaceae |
| Bromuniola Stapf & C. E. Hubb. | Chasmanthium Link | | | Bromuniola Stapf & C. E. Hubb. | Chasmanthium Link | Poaceae |
| Cabrera Lag. | Axonopus P. Beauv. | | | Cabrera Lag. | Axonopus P. Beauv. | Poaceae |
| Calamina P. Beauv. | Apluda L. | | | Calamina P. Beauv. | Apluda L. | Poaceae |
| Calamochloe Rchb. | Arundinella Raddi | | | Calamochloe Rchb. | Arundinella Raddi | Poaceae |
| Calderonella Soderstr. & H. F. Decker | Zeugites P. Browne | | | Calderonella Soderstr. & H. F. Decker | Zeugites P. Browne | Poaceae |
| Callichloea Steud., nom. inval. | Elionurus Humb. & Bonpl. ex Willd. | | | Callichloea Steud., nom. inval. | Elionurus Humb. & Bonpl. ex Willd. | Poaceae |
| Calochloa Kunze, nom. inval. | Elionurus Humb. & Bonpl. ex Willd. | | | Calochloa Kunze, nom. inval. | Elionurus Humb. & Bonpl. ex Willd. | Poaceae |
| Calyptochloa C. E. Hubb. | | a | | Calyptochloa C. E. Hubb. | | Poaceae |
| Camusiella Bosser | Setaria P. Beauv. | | | Camusiella Bosser | Setaria P. Beauv. | Poaceae |
| Canastra Morrone et al. | | a | | Canastra Morrone et al. | | Poaceae |
| Capillipedium Stapf | | a | | Capillipedium Stapf | | Poaceae |
| Catatherophora Steud. | Cenchrus L. | | | Catatherophora Steud. | Cenchrus L. | Poaceae |
| Cenchropsis Nash | Cenchrus L. | | | Cenchropsis Nash | Cenchrus L. | Poaceae |
| Cenchrus L. | | a | | Cenchrus L. | | Poaceae |
| Centosteca Desv., orth. var. | Centotheca Desv. | | | Centosteca Desv., orth. var. | Centotheca Desv. | Poaceae |
| Centotheca Desv. | | a | | Centotheca Desv. | | Poaceae |
| Centrochloa Swallen | Axonopus P. Beauv. | | | Centrochloa Swallen | Axonopus P. Beauv. | Poaceae |
| Centrophorum Trin. | Chrysopogon Trin. | | | Centrophorum Trin. | Chrysopogon Trin. | Poaceae |
| Cerea Schltdl. | Paspalum L. | | | Cerea Schltdl. | Paspalum L. | Poaceae |
| Ceresia Pers. | Paspalum L. | | | Ceresia Pers. | Paspalum L. | Poaceae |
| Clausospicula Lazarides | | a | | Clausospicula Lazarides | | Poaceae |
| Cleachne Adans., nom. inval. | Paspalum L. | | | Cleachne Adans., nom. inval. | Paspalum L. | Poaceae |
| Cleistachne Benth. | | a | | Cleistachne Benth. | | Poaceae |
| Cleistochloa C. E. Hubb. | | a | | Cleistochloa C. E. Hubb. | | Poaceae |
| Cliffordiochloa B. K. Simon | Steinchisma Raf. | | | Cliffordiochloa B. K. Simon | Steinchisma Raf. | Poaceae |
| Cnidochloa Zuloaga | | a | | Cnidochloa Zuloaga | | Poaceae |
| Coelarthron Hook. f. | Microstegium Nees | | | Coelarthron Hook. f. | Microstegium Nees | Poaceae |
| Coelorachis Brongn. | Mnesithea Kunth | | | Coelorachis Brongn. | Mnesithea Kunth | Poaceae |
| Coix L. | | a | | Coix L. | | Poaceae |
| Coleataenia Griseb. | | a | | Coleataenia Griseb. | | Poaceae |
| Colladoa Cav. | Ischaemum L. | | | Colladoa Cav. | Ischaemum L. | Poaceae |
| Commelinidium Stapf | Acroceras Stapf | | | Commelinidium Stapf | Acroceras Stapf | Poaceae |
| Coridochloa Nees | Alloteropsis J. Presl | | | Coridochloa Nees | Alloteropsis J. Presl | Poaceae |
| Cyathorhachis Nees | Polytoca R. Br. | | | Cyathorhachis Nees | Polytoca R. Br. | Poaceae |
| Cycloteria Stapf, nom. inval. | Mnesithea Kunth | | | Cycloteria Stapf, nom. inval. | Mnesithea Kunth | Poaceae |
| Cymatochloa Schltdl. | Paspalum L. | | | Cymatochloa Schltdl. | Paspalum L. | Poaceae |
| Cymbanthelia Andersson, nom. inval. | Cymbopogon Spreng. | | | Cymbanthelia Andersson, nom. inval. | Cymbopogon Spreng. | Poaceae |
| Cymbopogon Spreng. | | a | | Cymbopogon Spreng. | | Poaceae |
| Cymbosetaria Schweick. | Setaria P. Beauv. | | | Cymbosetaria Schweick. | Setaria P. Beauv. | Poaceae |
| Cyperochloa Lazarides & L. Watson | | a | | Cyperochloa Lazarides & L. Watson | | Poaceae |
| Cyphochlaena Hack. | | a | | Cyphochlaena Hack. | | Poaceae |
| Cyphonanthus Zuloaga & Morrone | | a | | Cyphonanthus Zuloaga & Morrone | | Poaceae |
| Cyrtococcum Stapf | | a | | Cyrtococcum Stapf | | Poaceae |
| Dactylodes Kuntze | Tripsacum L. | | | Dactylodes Kuntze | Tripsacum L. | Poaceae |
| Dallwatsonia B. K. Simon | Hymenachne P. Beauv. | | | Dallwatsonia B. K. Simon | Hymenachne P. Beauv. | Poaceae |
| Danthoniopsis Stapf | | a | | Danthoniopsis Stapf | | Poaceae |
| Despretzia Kunth | Zeugites P. Browne | | | Despretzia Kunth | Zeugites P. Browne | Poaceae |
| Diandranthus Liou, nom. inval. | Miscanthus Andersson | | | Diandranthus Liou, nom. inval. | Miscanthus Andersson | Poaceae |
| Diandrostachya (C. E. Hubb.) Jacq.-Fél. | Loudetiopsis Conert | | | Diandrostachya (C. E. Hubb.) Jacq.-Fél. | Loudetiopsis Conert | Poaceae |
| Diastemenanthe Desv. | Stenotaphrum Trin. | | | Diastemenanthe Desv. | Stenotaphrum Trin. | Poaceae |
| Didactylon Zoll. & Moritzi | Dimeria R. Br. | | | Didactylon Zoll. & Moritzi | Dimeria R. Br. | Poaceae |
| Diectomis Kunth | | a | | Diectomis Kunth | | Poaceae |
| Diectomis P. Beauv. | Anadelphia Hack. | | | Diectomis P. Beauv. | Anadelphia Hack. | Poaceae |
| Digastrium (Hack.) A. Camus | Ischaemum L. | | | Digastrium (Hack.) A. Camus | Ischaemum L. | Poaceae |
| Digitaria Heist. ex Fabr. | Paspalum L. | | | Digitaria Heist. ex Fabr. | Paspalum L. | Poaceae |
| Digitaria Haller | | a | | Digitaria Haller | | Poaceae |
| Digitariella De Winter | Digitaria Haller | | | Digitariella De Winter | Digitaria Haller | Poaceae |
| Digitariopsis C. E. Hubb. | Digitaria Haller | | | Digitariopsis C. E. Hubb. | Digitaria Haller | Poaceae |
| Diheteropogon (Hack.) Stapf | | a | | Diheteropogon (Hack.) Stapf | | Poaceae |
| Dichaetaria Nees | | a | | Dichaetaria Nees | | Poaceae |
| Dichanthelium (Hitchc. & Chase) Gould | | a | | Dichanthelium (Hitchc. & Chase) Gould | | Poaceae |
| Dichanthium Willemet | | a | | Dichanthium Willemet | | Poaceae |
| Dichromus Schltdl., nom. inval. | Paspalum L. | | | Dichromus Schltdl., nom. inval. | Paspalum L. | Poaceae |
| Dileucaden (Raf.) Steud., nom. inval. | Panicum L. | | | Dileucaden (Raf.) Steud., nom. inval. | Panicum L. | Poaceae |
| Dilophotriche (C. E. Hubb.) Jacq.-Fél. | | a | | Dilophotriche (C. E. Hubb.) Jacq.-Fél. | | Poaceae |
| Dimeiostemon Raf. | Andropogon L. | | | Dimeiostemon Raf. | Andropogon L. | Poaceae |
| Dimeria R. Br. | | a | | Dimeria R. Br. | | Poaceae |
| Dimorphochloa S. T. Blake | | a | | Dimorphochloa S. T. Blake | | Poaceae |
| Dimorphostachys E. Fourn. | Paspalum L. | | | Dimorphostachys E. Fourn. | Paspalum L. | Poaceae |
| Diperium Desv. | Mnesithea Kunth | | | Diperium Desv. | Mnesithea Kunth | Poaceae |
| Diplasanthum Desv. | Dichanthium Willemet | | | Diplasanthum Desv. | Dichanthium Willemet | Poaceae |
| Dipogon Steud., nom. inval. | Sorghastrum Nash | | | Dipogon Steud., nom. inval. | Sorghastrum Nash | Poaceae |
| Dissochondrus (Hillebr.) Kuntze | | a | | Dissochondrus (Hillebr.) Kuntze | | Poaceae |
| Dolichochaete (C. E. Hubb.) J. B. Phipps | Tristachya Nees | | | Dolichochaete (C. E. Hubb.) J. B. Phipps | Tristachya Nees | Poaceae |
| Dybowskia Stapf | Hyparrhenia Andersson ex E. Fourn. | | | Dybowskia Stapf | Hyparrhenia Andersson ex E. Fourn. | Poaceae |
| Eatonia Raf. | Panicum L. | | | Eatonia Raf. | Panicum L. | Poaceae |
| Eccoilopus Steud. | Spodiopogon Trin. | | | Eccoilopus Steud. | Spodiopogon Trin. | Poaceae |
| Eccoptocarpha Launert | | a | | Eccoptocarpha Launert | | Poaceae |
| Echinaria Fabr. | Cenchrus L. | | | Echinaria Fabr. | Cenchrus L. | Poaceae |
| Echinochlaena Spreng., orth. var. | Echinolaena Desv. | | | Echinochlaena Spreng., orth. var. | Echinolaena Desv. | Poaceae |
| Echinochloa P. Beauv. | | a | | Echinochloa P. Beauv. | | Poaceae |
| Echinolaena Desv. | | a | | Echinolaena Desv. | | Poaceae |
| Elionurus Humb. & Bonpl. ex Willd. | | a | | Elionurus Humb. & Bonpl. ex Willd. | | Poaceae |
| Elymandra Stapf | | a | | Elymandra Stapf | | Poaceae |
| Elyonurus Humb. & Bonpl. ex Willd., orth. var. | Elionurus Humb. & Bonpl. ex Willd. | | | Elyonurus Humb. & Bonpl. ex Willd., orth. var. | Elionurus Humb. & Bonpl. ex Willd. | Poaceae |
| Elytroblepharum (Steud.) Schltdl. | Digitaria Haller | | | Elytroblepharum (Steud.) Schltdl. | Digitaria Haller | Poaceae |
| Entolasia Stapf | | a | | Entolasia Stapf | | Poaceae |
| Ephebopogon Steud., nom. inval. | Microstegium Nees | | | Ephebopogon Steud., nom. inval. | Microstegium Nees | Poaceae |
| Eremochlamys Peter | Tricholaena Schrad. | | | Eremochlamys Peter | Tricholaena Schrad. | Poaceae |
| Eremochloa Büse | | a | | Eremochloa Büse | | Poaceae |
| Eremopogon Stapf | | a | | Eremopogon Stapf | | Poaceae |
| Eriachne Phil. | Digitaria Haller | | | Eriachne Phil. | Digitaria Haller | Poaceae |
| Erianthus Michx. | Saccharum L. | | | Erianthus Michx. | Saccharum L. | Poaceae |
| Eriochaeta Fig. & De Not. | Cenchrus L. | | | Eriochaeta Fig. & De Not. | Cenchrus L. | Poaceae |
| Eriochloa Kunth | | a | | Eriochloa Kunth | | Poaceae |
| Eriochrysis P. Beauv. | | a | | Eriochrysis P. Beauv. | | Poaceae |
| Eriolytrum Kunth, nom. inval. | Panicum L. | | | Eriolytrum Kunth, nom. inval. | Panicum L. | Poaceae |
| Eriopodium Hochst., nom. inval. | Andropogon L. | | | Eriopodium Hochst., nom. inval. | Andropogon L. | Poaceae |
| Euclasta Franch. | | a | | Euclasta Franch. | | Poaceae |
| Euchlaena Schrad. | Zea L. | | | Euchlaena Schrad. | Zea L. | Poaceae |
| Euklastaxon Steud. | Andropogon L. | | | Euklastaxon Steud. | Andropogon L. | Poaceae |
| Eulalia Kunth | | a | | Eulalia Kunth | | Poaceae |
| Eulaliopsis Honda | | a | | Eulaliopsis Honda | | Poaceae |
| Eupogon Desv., nom. inval. | Andropogon L. | | | Eupogon Desv., nom. inval. | Andropogon L. | Poaceae |
| Exotheca Andersson | | a | | Exotheca Andersson | | Poaceae |
| Fasciculochloa B. K. Simon & C. M. Weiller | Steinchisma Raf. | | | Fasciculochloa B. K. Simon & C. M. Weiller | Steinchisma Raf. | Poaceae |
| Filipedium Raizada & S. K. Jain | Capillipedium Stapf | | | Filipedium Raizada & S. K. Jain | Capillipedium Stapf | Poaceae |
| Galeottia M. Martens & Galeotti, nom. inval. | Zeugites P. Browne | | | Galeottia M. Martens & Galeotti, nom. inval. | Zeugites P. Browne | Poaceae |
| Garnotia Brongn. | | a | | Garnotia Brongn. | | Poaceae |
| Garnotiella Stapf | Asthenochloa Büse | | | Garnotiella Stapf | Asthenochloa Büse | Poaceae |
| Gazachloa J. B. Phipps | Danthoniopsis Stapf | | | Gazachloa J. B. Phipps | Danthoniopsis Stapf | Poaceae |
| Germainia Balansa & Poitr. | | a | | Germainia Balansa & Poitr. | | Poaceae |
| Gerritea Zuloaga et al. | | a | | Gerritea Zuloaga et al. | | Poaceae |
| Gilgiochloa Pilg. | | a | | Gilgiochloa Pilg. | | Poaceae |
| Glandiloba (Raf.) Steud., nom. inval. | Eriochloa Kunth | | | Glandiloba (Raf.) Steud., nom. inval. | Eriochloa Kunth | Poaceae |
| Glyphochloa Clayton | | a | | Glyphochloa Clayton | | Poaceae |
| Goldbachia Trin. | Arundinella Raddi | | | Goldbachia Trin. | Arundinella Raddi | Poaceae |
| Gouldochloa Valdés-Reyna et al. | Chasmanthium Link | | | Gouldochloa Valdés-Reyna et al. | Chasmanthium Link | Poaceae |
| Gramerium Desv. | Digitaria Haller | | | Gramerium Desv. | Digitaria Haller | Poaceae |
| Gymnandropogon (Nees) Duthie | Bothriochloa Kuntze | | | Gymnandropogon (Nees) Duthie | Bothriochloa Kuntze | Poaceae |
| Gymnanthelia Schweinf., nom. inval. | Cymbopogon Spreng. | | | Gymnanthelia Schweinf., nom. inval. | Cymbopogon Spreng. | Poaceae |
| Gymnotrix P. Beauv. | Cenchrus L. | | | Gymnotrix P. Beauv. | Cenchrus L. | Poaceae |
| Gynerium Willd. ex P. Beauv. | | a | | Gynerium Willd. ex P. Beauv. | | Poaceae |
| Habrurus Hochst., nom. inval. | Elionurus Humb. & Bonpl. ex Willd. | | | Habrurus Hochst., nom. inval. | Elionurus Humb. & Bonpl. ex Willd. | Poaceae |
| Hackelochloa Kuntze | | a | | Hackelochloa Kuntze | | Poaceae |
| Haplachne C. Presl | Dimeria R. Br. | | | Haplachne C. Presl | Dimeria R. Br. | Poaceae |
| Hekaterosachne Steud. | Oplismenus P. Beauv. | | | Hekaterosachne Steud. | Oplismenus P. Beauv. | Poaceae |
| Helopus Trin. | Eriochloa Kunth | | | Helopus Trin. | Eriochloa Kunth | Poaceae |
| Hemarthria R. Br. | | a | | Hemarthria R. Br. | | Poaceae |
| Hemigymnia Stapf | Ottochloa Dandy | | | Hemigymnia Stapf | Ottochloa Dandy | Poaceae |
| Hemisorghum C. E. Hubb. | Sorghum Moench | | | Hemisorghum C. E. Hubb. | Sorghum Moench | Poaceae |
| Heterelytron Jungh. | Themeda Forssk. | | | Heterelytron Jungh. | Themeda Forssk. | Poaceae |
| Heterochloa Desv. | Andropogon L. | | | Heterochloa Desv. | Andropogon L. | Poaceae |
| Heteropholis C. E. Hubb. | | a | | Heteropholis C. E. Hubb. | | Poaceae |
| Heteropogon Pers. | | a | | Heteropogon Pers. | | Poaceae |
| Hildaea C. Silva & R. P. Oliveira | | a | | Hildaea C. Silva & R. P. Oliveira | | Poaceae |
| Hippagrostis Kuntze | Oplismenus P. Beauv. | | | Hippagrostis Kuntze | Oplismenus P. Beauv. | Poaceae |
| Holcolemma Stapf & C. E. Hubb. | | a | | Holcolemma Stapf & C. E. Hubb. | | Poaceae |
| Hologamium Nees | Sehima Forssk. | | | Hologamium Nees | Sehima Forssk. | Poaceae |
| Holosetum Steud. | Alloteropsis J. Presl | | | Holosetum Steud. | Alloteropsis J. Presl | Poaceae |
| Homoeatherum Nees | Andropogon L. | | | Homoeatherum Nees | Andropogon L. | Poaceae |
| Homolepis Chase | | a | | Homolepis Chase | | Poaceae |
| Homopholis C. E. Hubb. | | a | | Homopholis C. E. Hubb. | | Poaceae |
| Homoplitis Trin. | Pogonatherum P. Beauv. | | | Homoplitis Trin. | Pogonatherum P. Beauv. | Poaceae |
| Homopogon Stapf | Trachypogon Nees | | | Homopogon Stapf | Trachypogon Nees | Poaceae |
| Homozeugos Stapf | | a | | Homozeugos Stapf | | Poaceae |
| Hopia Zuloaga & Morrone | | a | | Hopia Zuloaga & Morrone | | Poaceae |
| Hoplismenus Hassk., orth. var. | Oplismenus P. Beauv. | | | Hoplismenus Hassk., orth. var. | Oplismenus P. Beauv. | Poaceae |
| Hydrothauma C. E. Hubb. | | a | | Hydrothauma C. E. Hubb. | | Poaceae |
| Hygrochloa Lazarides | | a | | Hygrochloa Lazarides | | Poaceae |
| Hylebates Chippind. | | a | | Hylebates Chippind. | | Poaceae |
| Hymenachne P. Beauv. | | a | | Hymenachne P. Beauv. | | Poaceae |
| Hyparrhenia Andersson ex E. Fourn. | | a | | Hyparrhenia Andersson ex E. Fourn. | | Poaceae |
| Hyperthelia Clayton | | a | | Hyperthelia Clayton | | Poaceae |
| Hypogynium Nees | Andropogon L. | | | Hypogynium Nees | Andropogon L. | Poaceae |
| Hypudaerus A. Braun, nom. inval. | Anthephora Schreb. | | | Hypudaerus A. Braun, nom. inval. | Anthephora Schreb. | Poaceae |
| Chaetium Nees | | a | | Chaetium Nees | | Poaceae |
| Chaetochloa Scribn. | Setaria P. Beauv. | | | Chaetochloa Scribn. | Setaria P. Beauv. | Poaceae |
| Chaetopoa C. E. Hubb. | | a | | Chaetopoa C. E. Hubb. | | Poaceae |
| Chalcoelytrum Lunell | Chrysopogon Trin. | | | Chalcoelytrum Lunell | Chrysopogon Trin. | Poaceae |
| Chalynochlamys Franch., nom. inval. | Arundinella Raddi | | | Chalynochlamys Franch., nom. inval. | Arundinella Raddi | Poaceae |
| Chamaeraphis R. Br. | | a | | Chamaeraphis R. Br. | | Poaceae |
| Chandrasekharania V. J. Nair et al. | | a | | Chandrasekharania V. J. Nair et al. | | Poaceae |
| Chasea Nieuwl., nom. inval. | Panicum L. | | | Chasea Nieuwl., nom. inval. | Panicum L. | Poaceae |
| Chasechloa A. Camus | | a | | Chasechloa A. Camus | | Poaceae |
| Chasmanthium Link | | a | | Chasmanthium Link | | Poaceae |
| Chasmopodium Stapf | | a | | Chasmopodium Stapf | | Poaceae |
| Chevalierella A. Camus | | a | | Chevalierella A. Camus | | Poaceae |
| Chionachne R. Br. | | a | | Chionachne R. Br. | | Poaceae |
| Chloachne Stapf | Poecilostachys Hack. | | | Chloachne Stapf | Poecilostachys Hack. | Poaceae |
| Chloridion Stapf | Stereochlaena Hack. | | | Chloridion Stapf | Stereochlaena Hack. | Poaceae |
| Chlorocalymma Clayton | | a | | Chlorocalymma Clayton | | Poaceae |
| Chrysopogon Trin. | | a | | Chrysopogon Trin. | | Poaceae |
| Chumsriella Bor | Germainia Balansa & Poitr. | | | Chumsriella Bor | Germainia Balansa & Poitr. | Poaceae |
| Ichnanthus P. Beauv. | | a | | Ichnanthus P. Beauv. | | Poaceae |
| Imperata Cirillo | | a | | Imperata Cirillo | | Poaceae |
| Indochloa Bor | Euclasta Franch. | | | Indochloa Bor | Euclasta Franch. | Poaceae |
| Isalus J. B. Phipps | Tristachya Nees | | | Isalus J. B. Phipps | Tristachya Nees | Poaceae |
| Iseilema Andersson | | a | | Iseilema Andersson | | Poaceae |
| Ischaemopogon Griseb. | Ischaemum L. | | | Ischaemopogon Griseb. | Ischaemum L. | Poaceae |
| Ischaemum L. | | a | | Ischaemum L. | | Poaceae |
| Ischnanthus Roem. & Schult., orth. var. | Ichnanthus P. Beauv. | | | Ischnanthus Roem. & Schult., orth. var. | Ichnanthus P. Beauv. | Poaceae |
| Ischnochloa Hook. f. | Microstegium Nees | | | Ischnochloa Hook. f. | Microstegium Nees | Poaceae |
| Ixalum G. Forst., nom. inval. | Spinifex L. | | | Ixalum G. Forst., nom. inval. | Spinifex L. | Poaceae |
| Ixophorus Schltdl. | | a | | Ixophorus Schltdl. | | Poaceae |
| Jacquesfelixia J. B. Phipps | Danthoniopsis Stapf | | | Jacquesfelixia J. B. Phipps | Danthoniopsis Stapf | Poaceae |
| Jansenella Bor | | a | | Jansenella Bor | | Poaceae |
| Jardinea Steud. | | a | | Jardinea Steud. | | Poaceae |
| Kellochloa Lizarazu et al. | | a | | Kellochloa Lizarazu et al. | | Poaceae |
| Keratochlaena Morrone & Zuloaga | | a | | Keratochlaena Morrone & Zuloaga | | Poaceae |
| Kerinozoma Steud. | Xerochloa R. Br. | | | Kerinozoma Steud. | Xerochloa R. Br. | Poaceae |
| Kerriochloa C. E. Hubb. | | a | | Kerriochloa C. E. Hubb. | | Poaceae |
| Kikuyuochloa H. Scholz | Cenchrus L. | | | Kikuyuochloa H. Scholz | Cenchrus L. | Poaceae |
| Krombholzia E. Fourn. | Zeugites P. Browne | | | Krombholzia E. Fourn. | Zeugites P. Browne | Poaceae |
| Lacryma Medik. | Coix L. | | | Lacryma Medik. | Coix L. | Poaceae |
| Lachryma-jobi Ortega | Coix L. | | | Lachryma-jobi Ortega | Coix L. | Poaceae |
| Lachrymaria Heist. ex Fabr. | Coix L. | | | Lachrymaria Heist. ex Fabr. | Coix L. | Poaceae |
| Lakshmia Veldkamp | | a | | Lakshmia Veldkamp | | Poaceae |
| Lappagopsis Steud. | Axonopus P. Beauv. | | | Lappagopsis Steud. | Axonopus P. Beauv. | Poaceae |
| Lasiacis (Griseb.) Hitchc. | | a | | Lasiacis (Griseb.) Hitchc. | | Poaceae |
| Lasiolytrum Steud. | Arthraxon P. Beauv. | | | Lasiolytrum Steud. | Arthraxon P. Beauv. | Poaceae |
| Lasiorhachis (Hack.) Stapf | | a | | Lasiorhachis (Hack.) Stapf | | Poaceae |
| Lasiurus Boiss. | | a | | Lasiurus Boiss. | | Poaceae |
| Lecomtella A. Camus | | a | | Lecomtella A. Camus | | Poaceae |
| Lenormandia Steud., nom. inval. | Chrysopogon Trin. | | | Lenormandia Steud., nom. inval. | Chrysopogon Trin. | Poaceae |
| Lepargochloa Launert | Loxodera Launert | | | Lepargochloa Launert | Loxodera Launert | Poaceae |
| Lepeocercis Trin. | Dichanthium Willemet | | | Lepeocercis Trin. | Dichanthium Willemet | Poaceae |
| Leptatherum Nees | | a | | Leptatherum Nees | | Poaceae |
| Leptocoryphium Nees | Anthenantia P. Beauv. | | | Leptocoryphium Nees | Anthenantia P. Beauv. | Poaceae |
| Leptoloma Chase | Digitaria Haller | | | Leptoloma Chase | Digitaria Haller | Poaceae |
| Leptopogon Roberty | Andropogon L. | | | Leptopogon Roberty | Andropogon L. | Poaceae |
| Leptosaccharum (Hack.) A. Camus | Eriochrysis P. Beauv. | | | Leptosaccharum (Hack.) A. Camus | Eriochrysis P. Beauv. | Poaceae |
| Leucophrys Rendle | | a | | Leucophrys Rendle | | Poaceae |
| Lithagrostis Gaertn. | Coix L. | | | Lithagrostis Gaertn. | Coix L. | Poaceae |
| Lloydia Delile | Cenchrus L. | | | Lloydia Delile | Cenchrus L. | Poaceae |
| Lodicularia P. Beauv. | Hemarthria R. Br. | | | Lodicularia P. Beauv. | Hemarthria R. Br. | Poaceae |
| Lophatherum Brongn. | | a | | Lophatherum Brongn. | | Poaceae |
| Lophopogon Hack. | | a | | Lophopogon Hack. | | Poaceae |
| Loudetia Hochst. ex A. Braun | Tristachya Nees | | | Loudetia Hochst. ex A. Braun | Tristachya Nees | Poaceae |
| Loudetia Hochst. ex Steud. | | a | | Loudetia Hochst. ex Steud. | | Poaceae |
| Loudetiopsis Conert | | a | | Loudetiopsis Conert | | Poaceae |
| Louisiella C. E. Hubb. & J. Léonard | | a | | Louisiella C. E. Hubb. & J. Léonard | | Poaceae |
| Loxodera Launert | | a | | Loxodera Launert | | Poaceae |
| Loxostachys Peter | Pseudechinolaena Stapf | | | Loxostachys Peter | Pseudechinolaena Stapf | Poaceae |
| Loydia Delile, orth. var. | Cenchrus L. | | | Loydia Delile, orth. var. | Cenchrus L. | Poaceae |
| Lucaea Kunth | Arthraxon P. Beauv. | | | Lucaea Kunth | Arthraxon P. Beauv. | Poaceae |
| Macrochaeta Steud. | Cenchrus L. | | | Macrochaeta Steud. | Cenchrus L. | Poaceae |
| Maizilla Schltdl. | Paspalum L. | | | Maizilla Schltdl. | Paspalum L. | Poaceae |
| Mandelorna Steud. | Chrysopogon Trin. | | | Mandelorna Steud. | Chrysopogon Trin. | Poaceae |
| Manisuris L. | | a | | Manisuris L. | | Poaceae |
| Mayariochloa Salariato et al. | | a | | Mayariochloa Salariato et al. | | Poaceae |
| Mays Mill. | Zea L. | | | Mays Mill. | Zea L. | Poaceae |
| Mayzea Raf. | Zea L. | | | Mayzea Raf. | Zea L. | Poaceae |
| Megaloprotachne C. E. Hubb. | Digitaria Haller | | | Megaloprotachne C. E. Hubb. | Digitaria Haller | Poaceae |
| Megastachya P. Beauv. | | a | | Megastachya P. Beauv. | | Poaceae |
| Megathyrsus (Pilg.) B. K. Simon & S. W. L. Jacobs | | a | | Megathyrsus (Pilg.) B. K. Simon & S. W. L. Jacobs | | Poaceae |
| Melinis P. Beauv. | | a | | Melinis P. Beauv. | | Poaceae |
| Meoschium P. Beauv. | Ischaemum L. | | | Meoschium P. Beauv. | Ischaemum L. | Poaceae |
| Mesosetum Steud. | | a | | Mesosetum Steud. | | Poaceae |
| Mezochloa Butzin | Alloteropsis J. Presl | | | Mezochloa Butzin | Alloteropsis J. Presl | Poaceae |
| Microcalamus Franch. | | a | | Microcalamus Franch. | | Poaceae |
| Microcalamus Gamble | | | | Microcalamus Gamble | | Poaceae |
| Microstegium Nees | | a | | Microstegium Nees | | Poaceae |
| Microthuareia Thouars | Thuarea Pers. | | | Microthuareia Thouars | Thuarea Pers. | Poaceae |
| Mildbraediochloa Butzin | Melinis P. Beauv. | | | Mildbraediochloa Butzin | Melinis P. Beauv. | Poaceae |
| Miliastrum Fabr., nom. inval. | Setaria P. Beauv. | | | Miliastrum Fabr., nom. inval. | Setaria P. Beauv. | Poaceae |
| Milium Adans. | Panicum L. | | | Milium Adans. | Panicum L. | Poaceae |
| Miquelia Arn. & Nees | Garnotia Brongn. | | | Miquelia Arn. & Nees | Garnotia Brongn. | Poaceae |
| ×Miscantharum ined. | | a | | Miscantharum ined. | | Poaceae |
| Miscanthidium Stapf | Miscanthus Andersson | | | Miscanthidium Stapf | Miscanthus Andersson | Poaceae |
| Miscanthus Andersson | | a | | Miscanthus Andersson | | Poaceae |
| Mitwabachloa J. B. Phipps | Zonotriche (C. E. Hubb.) J. B. Phipps | | | Mitwabachloa J. B. Phipps | Zonotriche (C. E. Hubb.) J. B. Phipps | Poaceae |
| Mnesithea Kunth | | a | | Mnesithea Kunth | | Poaceae |
| Moenchia Steud., nom. inval. | Paspalum L. | | | Moenchia Steud., nom. inval. | Paspalum L. | Poaceae |
| Monachne P. Beauv. | Panicum L. | | | Monachne P. Beauv. | Panicum L. | Poaceae |
| Monachyron Parl. | Melinis P. Beauv. | | | Monachyron Parl. | Melinis P. Beauv. | Poaceae |
| Monium Stapf | Anadelphia Hack. | | | Monium Stapf | Anadelphia Hack. | Poaceae |
| Monocymbium Stapf | | a | | Monocymbium Stapf | | Poaceae |
| Monopogon C. Presl | Tristachya Nees | | | Monopogon C. Presl | Tristachya Nees | Poaceae |
| Moorochloa Veldkamp | | a | | Moorochloa Veldkamp | | Poaceae |
| Morronea Zuloaga & Scataglini | | a | | Morronea Zuloaga & Scataglini | | Poaceae |
| Muantijamvella J. B. Phipps | Tristachya Nees | | | Muantijamvella J. B. Phipps | Tristachya Nees | Poaceae |
| Myriachaeta Moritzi | Thysanolaena Nees | | | Myriachaeta Moritzi | Thysanolaena Nees | Poaceae |
| Nanooravia Kiran Raj & Sivad. | Dimeria R. Br. | | | Nanooravia Kiran Raj & Sivad. | Dimeria R. Br. | Poaceae |
| Narenga Bor | Miscanthus Andersson | | | Narenga Bor | Miscanthus Andersson | Poaceae |
| Nastus Lunell | Cenchrus L. | | | Nastus Lunell | Cenchrus L. | Poaceae |
| Navicularia Raddi | Ichnanthus P. Beauv. | | | Navicularia Raddi | Ichnanthus P. Beauv. | Poaceae |
| Nemastachys Steud. | Microstegium Nees | | | Nemastachys Steud. | Microstegium Nees | Poaceae |
| Neohusnotia A. Camus | Acroceras Stapf | | | Neohusnotia A. Camus | Acroceras Stapf | Poaceae |
| Neurachne R. Br. | | a | | Neurachne R. Br. | | Poaceae |
| Ocellochloa Zuloaga & Morrone | | a | | Ocellochloa Zuloaga & Morrone | | Poaceae |
| Odontelytrum Hack. | Cenchrus L. | | | Odontelytrum Hack. | Cenchrus L. | Poaceae |
| Oedipachne Link, nom. inval. | Eriochloa Kunth | | | Oedipachne Link, nom. inval. | Eriochloa Kunth | Poaceae |
| Oedochloa C. Silva & R. P. Oliveira | | a | | Oedochloa C. Silva & R. P. Oliveira | | Poaceae |
| Oncorachis Morrone & Zuloaga | | a | | Oncorachis Morrone & Zuloaga | | Poaceae |
| Ophiochloa Filg. et al. | Axonopus P. Beauv. | | | Ophiochloa Filg. et al. | Axonopus P. Beauv. | Poaceae |
| Ophismenus Poir., orth. var. | Oplismenus P. Beauv. | | | Ophismenus Poir., orth. var. | Oplismenus P. Beauv. | Poaceae |
| Ophiurinella Desv. | Stenotaphrum Trin. | | | Ophiurinella Desv. | Stenotaphrum Trin. | Poaceae |
| Ophiuros C. F. Gaertn. | | a | | Ophiuros C. F. Gaertn. | | Poaceae |
| Oplismenopsis Parodi | | a | | Oplismenopsis Parodi | | Poaceae |
| Oplismenus P. Beauv. | | a | | Oplismenus P. Beauv. | | Poaceae |
| Ornithocephalochloa Kurz | Thuarea Pers. | | | Ornithocephalochloa Kurz | Thuarea Pers. | Poaceae |
| Ornithospermum Dumoulin | Echinochloa P. Beauv. | | | Ornithospermum Dumoulin | Echinochloa P. Beauv. | Poaceae |
| Orthoclada P. Beauv. | | a | | Orthoclada P. Beauv. | | Poaceae |
| Orthopogon R. Br. | Oplismenus P. Beauv. | | | Orthopogon R. Br. | Oplismenus P. Beauv. | Poaceae |
| Oryzidium C. E. Hubb. & Schweick. | | a | | Oryzidium C. E. Hubb. & Schweick. | | Poaceae |
| Osvaldoa J. R. Grande | | a | | Osvaldoa J. R. Grande | | Poaceae |
| Otachyrium Nees | | a | | Otachyrium Nees | | Poaceae |
| Ottochloa Dandy | | a | | Ottochloa Dandy | | Poaceae |
| Oxyrhachis Pilg. | | a | | Oxyrhachis Pilg. | | Poaceae |
| Paniculum Ard., orth. var. | Panicum L. | | | Paniculum Ard., orth. var. | Panicum L. | Poaceae |
| Panicum L. | | a | | Panicum L. | | Poaceae |
| Paractaenum P. Beauv. | | a | | Paractaenum P. Beauv. | | Poaceae |
| Parahyparrhenia A. Camus | | a | | Parahyparrhenia A. Camus | | Poaceae |
| Paraneurachne S. T. Blake | Neurachne R. Br. | | | Paraneurachne S. T. Blake | Neurachne R. Br. | Poaceae |
| Paratheria Griseb. | | a | | Paratheria Griseb. | | Poaceae |
| Parectenium Stapf, orth. var. | Paractaenum P. Beauv. | | | Parectenium Stapf, orth. var. | Paractaenum P. Beauv. | Poaceae |
| Parodiophyllochloa Zuloaga & Morrone | | a | | Parodiophyllochloa Zuloaga & Morrone | | Poaceae |
| Paspalanthium Desv. | Paspalum L. | | | Paspalanthium Desv. | Paspalum L. | Poaceae |
| Paspalidium Stapf | | a | | Paspalidium Stapf | | Poaceae |
| Paspalum L. | | a | | Paspalum L. | | Poaceae |
| Pectinaria (Benth.) Hack. | Eremochloa Büse | | | Pectinaria (Benth.) Hack. | Eremochloa Büse | Poaceae |
| Peltophorus Desv. | Manisuris L. | | | Peltophorus Desv. | Manisuris L. | Poaceae |
| Penicillaria Willd. | Cenchrus L. | | | Penicillaria Willd. | Cenchrus L. | Poaceae |
| Peniculus Swallen | Mesosetum Steud. | | | Peniculus Swallen | Mesosetum Steud. | Poaceae |
| Pennisetum Rich. | Cenchrus L. | | | Pennisetum Rich. | Cenchrus L. | Poaceae |
| Pentastachya Steud., nom. inval. | Cenchrus L. | | | Pentastachya Steud., nom. inval. | Cenchrus L. | Poaceae |
| Perobachne C. Presl | Themeda Forssk. | | | Perobachne C. Presl | Themeda Forssk. | Poaceae |
| Perulifera A. Camus | Pseudechinolaena Stapf | | | Perulifera A. Camus | Pseudechinolaena Stapf | Poaceae |
| Petrina J. B. Phipps | Danthoniopsis Stapf | | | Petrina J. B. Phipps | Danthoniopsis Stapf | Poaceae |
| Phacelurus Griseb. | | a | | Phacelurus Griseb. | | Poaceae |
| Phanopyrum (Raf.) Nash | | a | | Phanopyrum (Raf.) Nash | | Poaceae |
| Piptostachya (C. E. Hubb.) J. B. Phipps | Zonotriche (C. E. Hubb.) J. B. Phipps | | | Piptostachya (C. E. Hubb.) J. B. Phipps | Zonotriche (C. E. Hubb.) J. B. Phipps | Poaceae |
| Pithecurus Kunth, nom. inval. | Schizachyrium Nees | | | Pithecurus Kunth, nom. inval. | Schizachyrium Nees | Poaceae |
| Plagiantha Renvoize | | a | | Plagiantha Renvoize | | Poaceae |
| Plagiarthron P. A. Duvign., nom. inval. | Loxodera Launert | | | Plagiarthron P. A. Duvign., nom. inval. | Loxodera Launert | Poaceae |
| Plagiosetum Benth. | | a | | Plagiosetum Benth. | | Poaceae |
| Plazerium Kunth, nom. inval. | Eriochrysis P. Beauv. | | | Plazerium Kunth, nom. inval. | Eriochrysis P. Beauv. | Poaceae |
| Pleiadelphia Stapf | Elymandra Stapf | | | Pleiadelphia Stapf | Elymandra Stapf | Poaceae |
| Pleioneura (C. E. Hubb.) J. B. Phipps | Danthoniopsis Stapf | | | Pleioneura (C. E. Hubb.) J. B. Phipps | Danthoniopsis Stapf | Poaceae |
| Pleuroplitis Trin. | Arthraxon P. Beauv. | | | Pleuroplitis Trin. | Arthraxon P. Beauv. | Poaceae |
| Pobeguinea (Stapf) Jacq.-Fél. | Anadelphia Hack. | | | Pobeguinea (Stapf) Jacq.-Fél. | Anadelphia Hack. | Poaceae |
| Poecilostachys Hack. | | a | | Poecilostachys Hack. | | Poaceae |
| Pogonachne Bor | | a | | Pogonachne Bor | | Poaceae |
| Pogonatherum P. Beauv. | | a | | Pogonatherum P. Beauv. | | Poaceae |
| Pogonopsis C. Presl | Pogonatherum P. Beauv. | | | Pogonopsis C. Presl | Pogonatherum P. Beauv. | Poaceae |
| Pohlidium Davidse et al. | Zeugites P. Browne | | | Pohlidium Davidse et al. | Zeugites P. Browne | Poaceae |
| Pollinia Trin. | Microstegium Nees | | | Pollinia Trin. | Microstegium Nees | Poaceae |
| Pollinia Spreng. | Chrysopogon Trin. | | | Pollinia Spreng. | Chrysopogon Trin. | Poaceae |
| Pollinidium Haines | Eulaliopsis Honda | | | Pollinidium Haines | Eulaliopsis Honda | Poaceae |
| Polliniopsis Hayata | Leptatherum Nees | | | Polliniopsis Hayata | Leptatherum Nees | Poaceae |
| Polyneura Peter | Panicum L. | | | Polyneura Peter | Panicum L. | Poaceae |
| Polytoca R. Br. | | a | | Polytoca R. Br. | | Poaceae |
| Polytrias Hack. | | a | | Polytrias Hack. | | Poaceae |
| Poranthera Raf. | Sorghastrum Nash | | | Poranthera Raf. | Sorghastrum Nash | Poaceae |
| Pseudanthistiria (Hack.) Hook. f. | | a | | Pseudanthistiria (Hack.) Hook. f. | | Poaceae |
| Pseudechinolaena Stapf | | a | | Pseudechinolaena Stapf | | Poaceae |
| Pseudobrachiaria Launert | Megathyrsus (Pilg.) B. K. Simon & S. W. L. Jacobs | | | Pseudobrachiaria Launert | Megathyrsus (Pilg.) B. K. Simon & S. W. L. Jacobs | Poaceae |
| Pseudodichanthium Bor | | a | | Pseudodichanthium Bor | | Poaceae |
| Pseudochaetochloa Hitchc. | | a | | Pseudochaetochloa Hitchc. | | Poaceae |
| Pseudolasiacis (A. Camus) A. Camus | | a | | Pseudolasiacis (A. Camus) A. Camus | | Poaceae |
| Pseudophacelurus A. Camus | Phacelurus Griseb. | | | Pseudophacelurus A. Camus | Phacelurus Griseb. | Poaceae |
| Pseudopogonatherum A. Camus | | a | | Pseudopogonatherum A. Camus | | Poaceae |
| Pseudoraphis Griff. | | a | | Pseudoraphis Griff. | | Poaceae |
| Pseudosorghum A. Camus | | a | | Pseudosorghum A. Camus | | Poaceae |
| Pseudovossia A. Camus | Phacelurus Griseb. | | | Pseudovossia A. Camus | Phacelurus Griseb. | Poaceae |
| Psilochloa Launert | Panicum L. | | | Psilochloa Launert | Panicum L. | Poaceae |
| Psilopogon Hochst. | Leptatherum Nees | | | Psilopogon Hochst. | Leptatherum Nees | Poaceae |
| Psilostachys Steud. | Dimeria R. Br. | | | Psilostachys Steud. | Dimeria R. Br. | Poaceae |
| Pterochlaena Chiov. | Alloteropsis J. Presl | | | Pterochlaena Chiov. | Alloteropsis J. Presl | Poaceae |
| Pterygostachyum Steud. | Dimeria R. Br. | | | Pterygostachyum Steud. | Dimeria R. Br. | Poaceae |
| Puliculum Haines | Eulalia Kunth | | | Puliculum Haines | Eulalia Kunth | Poaceae |
| Ramosia Merr. | Centotheca Desv. | | | Ramosia Merr. | Centotheca Desv. | Poaceae |
| Raram Adans. | Cenchrus L. | | | Raram Adans. | Cenchrus L. | Poaceae |
| Rattraya J. B. Phipps | Danthoniopsis Stapf | | | Rattraya J. B. Phipps | Danthoniopsis Stapf | Poaceae |
| Ratzeburgia Kunth | | a | | Ratzeburgia Kunth | | Poaceae |
| Reana Brign. | Zea L. | | | Reana Brign. | Zea L. | Poaceae |
| Reimaria Humb. & Bonpl. ex Flüggé | Paspalum L. | | | Reimaria Humb. & Bonpl. ex Flüggé | Paspalum L. | Poaceae |
| Reimarochloa Hitchc. | Paspalum L. | | | Reimarochloa Hitchc. | Paspalum L. | Poaceae |
| Renvoizea Zuloaga & Morrone | | a | | Renvoizea Zuloaga & Morrone | | Poaceae |
| Reynaudia Kunth | | a | | Reynaudia Kunth | | Poaceae |
| Rhampholepis Stapf | Sacciolepis Nash | | | Rhampholepis Stapf | Sacciolepis Nash | Poaceae |
| Rhaphis Lour. | Chrysopogon Trin. | | | Rhaphis Lour. | Chrysopogon Trin. | Poaceae |
| Rhiniachne Steud., nom. inval. | Thelepogon Roth ex Roem. & Schult. | | | Rhiniachne Steud., nom. inval. | Thelepogon Roth ex Roem. & Schult. | Poaceae |
| Rhynchelythrum Nees, orth. var. | Melinis P. Beauv. | | | Rhynchelythrum Nees, orth. var. | Melinis P. Beauv. | Poaceae |
| Rhynchelytrum Nees | Melinis P. Beauv. | | | Rhynchelytrum Nees | Melinis P. Beauv. | Poaceae |
| Rhytachne Desv. ex Ham. | | a | | Rhytachne Desv. ex Ham. | | Poaceae |
| Rhytidachne K. Schum., orth. var. | Rhytachne Desv. ex Ham. | | | Rhytidachne K. Schum., orth. var. | Rhytachne Desv. ex Ham. | Poaceae |
| Riedelia Kunth, nom. inval. | Arundinella Raddi | | | Riedelia Kunth, nom. inval. | Arundinella Raddi | Poaceae |
| Ripidium Trin. | Saccharum L. | | | Ripidium Trin. | Saccharum L. | Poaceae |
| Robynsiochloa Jacq.-Fél. | Rottboellia L. f. | | | Robynsiochloa Jacq.-Fél. | Rottboellia L. f. | Poaceae |
| Rottboellia L. f. | | a | | Rottboellia L. f. | | Poaceae |
| Rubimons B. S. Sun & S. Wang | Miscanthus Andersson | | | Rubimons B. S. Sun & S. Wang | Miscanthus Andersson | Poaceae |
| Rugoloa Zuloaga | | a | | Rugoloa Zuloaga | | Poaceae |
| Rupichloa Salariato & Morrone | | a | | Rupichloa Salariato & Morrone | | Poaceae |
| Rytilix Raf. ex Hitchc. | Mnesithea Kunth | | | Rytilix Raf. ex Hitchc. | Mnesithea Kunth | Poaceae |
| Sabsab Adans. | Paspalum L. | | | Sabsab Adans. | Paspalum L. | Poaceae |
| Sacciolepis Nash | | a | | Sacciolepis Nash | | Poaceae |
| Saccharifera Stokes | Saccharum L. | | | Saccharifera Stokes | Saccharum L. | Poaceae |
| Saccharum L. | | a | | Saccharum L. | | Poaceae |
| Sanguinaria Bubani | Digitaria Haller | | | Sanguinaria Bubani | Digitaria Haller | Poaceae |
| Sanguinella Gleichen | Digitaria Haller | | | Sanguinella Gleichen | Digitaria Haller | Poaceae |
| Sarga Ewart | | a | | Sarga Ewart | | Poaceae |
| Sclerachne R. Br. | Chionachne R. Br. | | | Sclerachne R. Br. | Chionachne R. Br. | Poaceae |
| Sclerandrium Stapf & C. E. Hubb. | Germainia Balansa & Poitr. | | | Sclerandrium Stapf & C. E. Hubb. | Germainia Balansa & Poitr. | Poaceae |
| Sclerochlamys Morrone & Zuloaga | Keratochlaena Morrone & Zuloaga | | | Sclerochlamys Morrone & Zuloaga | Keratochlaena Morrone & Zuloaga | Poaceae |
| Sclerolaena A. Camus, nom. inval. | Cyphochlaena Hack. | | | Sclerolaena A. Camus, nom. inval. | Cyphochlaena Hack. | Poaceae |
| Sclerostachya (Hack.) A. Camus | Miscanthus Andersson | | | Sclerostachya (Hack.) A. Camus | Miscanthus Andersson | Poaceae |
| Scutachne Hitchc. & Chase | | a | | Scutachne Hitchc. & Chase | | Poaceae |
| Sehima Forssk. | | a | | Sehima Forssk. | | Poaceae |
| Senites Adans. | Zeugites P. Browne | | | Senites Adans. | Zeugites P. Browne | Poaceae |
| Sericura Hassk. | Cenchrus L. | | | Sericura Hassk. | Cenchrus L. | Poaceae |
| Setaria P. Beauv. | | a | | Setaria P. Beauv. | | Poaceae |
| Setariopsis Scribn. ex Millsp. | | a | | Setariopsis Scribn. ex Millsp. | | Poaceae |
| Setiacis S. L. Chen & Y. X. Jin | Acroceras Stapf | | | Setiacis S. L. Chen & Y. X. Jin | Acroceras Stapf | Poaceae |
| Setosa Ewart | Chamaeraphis R. Br. | | | Setosa Ewart | Chamaeraphis R. Br. | Poaceae |
| Schizachyrium Nees | | a | | Schizachyrium Nees | | Poaceae |
| Schizopogon Rchb. ex Spreng. | Schizachyrium Nees | | | Schizopogon Rchb. ex Spreng. | Schizachyrium Nees | Poaceae |
| Schmidiella Veldkamp | | a | | Schmidiella Veldkamp | | Poaceae |
| Schoenanthus Adans. | Ischaemum L. | | | Schoenanthus Adans. | Ischaemum L. | Poaceae |
| Snowdenia C. E. Hubb. | Cenchrus L. | | | Snowdenia C. E. Hubb. | Cenchrus L. | Poaceae |
| Sorengia Zuloaga & Morrone | Coleataenia Griseb. | | | Sorengia Zuloaga & Morrone | Coleataenia Griseb. | Poaceae |
| Sorghastrum Nash | | a | | Sorghastrum Nash | | Poaceae |
| Sorghum Moench | | a | | Sorghum Moench | | Poaceae |
| Sorghum Moench sect. Heterosorghum | | a | i | Sorghum Moench sect. Heterosorghum | | Poaceae |
| Sorghum Moench sect. Chaetosorghum | | a | i | Sorghum Moench sect. Chaetosorghum | | Poaceae |
| Sorghum Moench sect. Parasorghum | | a | i | Sorghum Moench sect. Parasorghum | | Poaceae |
| Sorghum Moench sect. Sorghum | | a | i | Sorghum Moench sect. Sorghum | | Poaceae |
| Sorghum Moench sect. Stiposorghum | Sorghum Moench sect. Parasorghum | | i | Sorghum Moench sect. Stiposorghum | Sorghum Moench sect. Parasorghum | Poaceae |
| Spartochloa C. E. Hubb. | | a | | Spartochloa C. E. Hubb. | | Poaceae |
| Spathia Ewart | | a | | Spathia Ewart | | Poaceae |
| Sphaerium Kuntze | Coix L. | | | Sphaerium Kuntze | Coix L. | Poaceae |
| Spheneria Kuhlm. | Paspalum L. | | | Spheneria Kuhlm. | Paspalum L. | Poaceae |
| Spinifex L. | | a | | Spinifex L. | | Poaceae |
| Spirotheros Raf. | Heteropogon Pers. | | | Spirotheros Raf. | Heteropogon Pers. | Poaceae |
| Spodiopogon Trin. | | a | | Spodiopogon Trin. | | Poaceae |
| Stegosia Lour. | Rottboellia L. f. | | | Stegosia Lour. | Rottboellia L. f. | Poaceae |
| Steinchisma Raf. | | a | | Steinchisma Raf. | | Poaceae |
| Stenotaphrum Trin. | | a | | Stenotaphrum Trin. | | Poaceae |
| Stephostachys Zuloaga & Morrone | | a | | Stephostachys Zuloaga & Morrone | | Poaceae |
| Stereochlaena Hack. | | a | | Stereochlaena Hack. | | Poaceae |
| Steyermarkochloa Davidse & R. P. Ellis | | a | | Steyermarkochloa Davidse & R. P. Ellis | | Poaceae |
| Streptolophus Hughes | | a | | Streptolophus Hughes | | Poaceae |
| Streptostachis Desv., orth. var. | Streptostachys Desv. | | | Streptostachis Desv., orth. var. | Streptostachys Desv. | Poaceae |
| Streptostachys Desv. | | a | | Streptostachys Desv. | | Poaceae |
| Suardia Schrank | Melinis P. Beauv. | | | Suardia Schrank | Melinis P. Beauv. | Poaceae |
| Syllepis E. Fourn. | Imperata Cirillo | | | Syllepis E. Fourn. | Imperata Cirillo | Poaceae |
| Syntherisma Walter | Digitaria Haller | | | Syntherisma Walter | Digitaria Haller | Poaceae |
| Taeniorhachis Cope | | a | | Taeniorhachis Cope | | Poaceae |
| Talasium Spreng. | Panicum L. | | | Talasium Spreng. | Panicum L. | Poaceae |
| Tansaniochloa Rauschert | Setaria P. Beauv. | | | Tansaniochloa Rauschert | Setaria P. Beauv. | Poaceae |
| Tarigidia Stent | | a | | Tarigidia Stent | | Poaceae |
| Tatianyx Zuloaga & Soderstr. | | a | | Tatianyx Zuloaga & Soderstr. | | Poaceae |
| Tema Adans. | Echinochloa P. Beauv. | | | Tema Adans. | Echinochloa P. Beauv. | Poaceae |
| Thalysia Kuntze | Zea L. | | | Thalysia Kuntze | Zea L. | Poaceae |
| Thaumastochloa C. E. Hubb. | | a | | Thaumastochloa C. E. Hubb. | | Poaceae |
| Thedachloa S. W. L. Jacobs | | a | | Thedachloa S. W. L. Jacobs | | Poaceae |
| Thelepogon Roth ex Roem. & Schult. | | a | | Thelepogon Roth ex Roem. & Schult. | | Poaceae |
| Themeda Forssk. | | a | | Themeda Forssk. | | Poaceae |
| Thouarsia Kuntze, orth. var. | Thuarea Pers. | | | Thouarsia Kuntze, orth. var. | Thuarea Pers. | Poaceae |
| Thrasya Kunth | Paspalum L. | | | Thrasya Kunth | Paspalum L. | Poaceae |
| Thrasyopsis Parodi | Paspalum L. | | | Thrasyopsis Parodi | Paspalum L. | Poaceae |
| Thuarea Pers. | | a | | Thuarea Pers. | | Poaceae |
| Thyridachne C. E. Hubb. | | a | | Thyridachne C. E. Hubb. | | Poaceae |
| Thyridolepis S. T. Blake | | a | | Thyridolepis S. T. Blake | | Poaceae |
| Thyridostachyum Nees | Mnesithea Kunth | | | Thyridostachyum Nees | Mnesithea Kunth | Poaceae |
| Thyrsia Stapf | | a | | Thyrsia Stapf | | Poaceae |
| Thysanachne C. Presl | Arundinella Raddi | | | Thysanachne C. Presl | Arundinella Raddi | Poaceae |
| Thysanolaena Nees | | a | | Thysanolaena Nees | | Poaceae |
| Tiarrhena (Maxim.) Nakai, orth. var. | Miscanthus Andersson | | | Tiarrhena (Maxim.) Nakai, orth. var. | Miscanthus Andersson | Poaceae |
| Tisserantiella Mimeur | Thyridachne C. E. Hubb. | | | Tisserantiella Mimeur | Thyridachne C. E. Hubb. | Poaceae |
| Trachyozus Rchb. | Trachys Pers. | | | Trachyozus Rchb. | Trachys Pers. | Poaceae |
| Trachypogon Nees | | a | | Trachypogon Nees | | Poaceae |
| Trachys Pers. | | a | | Trachys Pers. | | Poaceae |
| Trachystachys A. Dietr. | Trachys Pers. | | | Trachystachys A. Dietr. | Trachys Pers. | Poaceae |
| Trianthium Desv., nom. inval. | Chrysopogon Trin. | | | Trianthium Desv., nom. inval. | Chrysopogon Trin. | Poaceae |
| Triarrhena (Maxim.) Nakai | Miscanthus Andersson | | | Triarrhena (Maxim.) Nakai | Miscanthus Andersson | Poaceae |
| Trichachne Nees | Digitaria Haller | | | Trichachne Nees | Digitaria Haller | Poaceae |
| Trichanthecium Zuloaga & Morrone | | a | | Trichanthecium Zuloaga & Morrone | | Poaceae |
| Trichochlaena Kuntze, orth. var. | Tricholaena Schrad. | | | Trichochlaena Kuntze, orth. var. | Tricholaena Schrad. | Poaceae |
| Tricholaena Schrad. | | a | | Tricholaena Schrad. | | Poaceae |
| Trichopteria Nees, orth. var. | Trichopteryx Nees | | | Trichopteria Nees, orth. var. | Trichopteryx Nees | Poaceae |
| Trichopteryx Nees | | a | | Trichopteryx Nees | | Poaceae |
| Trilobachne Schenck ex Henrard | | a | | Trilobachne Schenck ex Henrard | | Poaceae |
| Tripidium H. Scholz | | a | | Tripidium H. Scholz | | Poaceae |
| Triplopogon Bor | | a | | Triplopogon Bor | | Poaceae |
| Tripsacum L. | | a | | Tripsacum L. | | Poaceae |
| Tripsacum L. sect. Fasciculata | | a | i | Tripsacum L. sect. Fasciculata | | Poaceae |
| Tripsacum L. sect. Tripsacum | | a | i | Tripsacum L. sect. Tripsacum | | Poaceae |
| Triscenia Griseb. | | a | | Triscenia Griseb. | | Poaceae |
| Tristachya Nees | | a | | Tristachya Nees | | Poaceae |
| Tristegis Nees, nom. inval. | Melinis P. Beauv. | | | Tristegis Nees, nom. inval. | Melinis P. Beauv. | Poaceae |
| Tylothrasya Döll | Paspalum L. | | | Tylothrasya Döll | Paspalum L. | Poaceae |
| Uranthoecium Stapf | | a | | Uranthoecium Stapf | | Poaceae |
| Urelytrum Hack. | | a | | Urelytrum Hack. | | Poaceae |
| Urochloa P. Beauv. | | a | | Urochloa P. Beauv. | | Poaceae |
| Vacoparis Spangler | Sorghum Moench | | | Vacoparis Spangler | Sorghum Moench | Poaceae |
| Valota Adans. | Digitaria Haller | | | Valota Adans. | Digitaria Haller | Poaceae |
| Veldkampia Ibaragi & Shiro Kobay. | | a | | Veldkampia Ibaragi & Shiro Kobay. | | Poaceae |
| Veseyochloa J. B. Phipps | Tristachya Nees | | | Veseyochloa J. B. Phipps | Tristachya Nees | Poaceae |
| Vetiveria Lem.-Lis. | Chrysopogon Trin. | | | Vetiveria Lem.-Lis. | Chrysopogon Trin. | Poaceae |
| Vossia Wall. & Griff. | | a | | Vossia Wall. & Griff. | | Poaceae |
| Walwhalleya Wills & J. J. Bruhl | | a | | Walwhalleya Wills & J. J. Bruhl | | Poaceae |
| Whalleya Wills & J. J. Bruhl | Walwhalleya Wills & J. J. Bruhl | | | Whalleya Wills & J. J. Bruhl | Walwhalleya Wills & J. J. Bruhl | Poaceae |
| Whiteochloa C. E. Hubb. | | a | | Whiteochloa C. E. Hubb. | | Poaceae |
| Wirtgenia Döll, nom. inval. | Paspalum L. | | | Wirtgenia Döll, nom. inval. | Paspalum L. | Poaceae |
| Woodrowia Stapf | Dimeria R. Br. | | | Woodrowia Stapf | Dimeria R. Br. | Poaceae |
| Xerodanthia J. B. Phipps | Danthoniopsis Stapf | | | Xerodanthia J. B. Phipps | Danthoniopsis Stapf | Poaceae |
| Xerochloa R. Br. | | a | | Xerochloa R. Br. | | Poaceae |
| Xiphagrostis Coville | Miscanthus Andersson | | | Xiphagrostis Coville | Miscanthus Andersson | Poaceae |
| Xyochlaena Stapf | Tricholaena Schrad. | | | Xyochlaena Stapf | Tricholaena Schrad. | Poaceae |
| Yakirra Lazarides & R. D. Webster | Panicum L. | | | Yakirra Lazarides & R. D. Webster | Panicum L. | Poaceae |
| Ystia Compère | Schizachyrium Nees | | | Ystia Compère | Schizachyrium Nees | Poaceae |
| Yvesia A. Camus | | a | | Yvesia A. Camus | | Poaceae |
| Zea L. | | a | | Zea L. | | Poaceae |
| Zeugites P. Browne | | a | | Zeugites P. Browne | | Poaceae |
| Zonotriche (C. E. Hubb.) J. B. Phipps | | a | | Zonotriche (C. E. Hubb.) J. B. Phipps | | Poaceae |
| Zuloagaea Bess | | a | | Zuloagaea Bess | | Poaceae |
| Zygochloa S. T. Blake | | a | | Zygochloa S. T. Blake | | Poaceae |