The true grasses ( Poaceae) are one of the largest plant families, with around 12,000 species and roughly 800 genera. They contain, among others, the cereal crop species and other plants of economic importance, such as the

bamboos Bamboos are a diverse group of evergreen perennial flowering plants making up the subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family. The origin of the word "bamboo" is uncertain, ...

, and several important

weed A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place", or a plant growing where it is not wanted.Harlan, J. R., & deWet, J. M. (1965). Some thoughts about weeds. ''Economic botany'', ''19''(1), 16-24. ...

s. Grasses probably originated in the understory of tropical rainforests in the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', ...

, but have since come to occupy a wide range of different habitats. Notably, they are the dominant species in grasslands, open habitats that cover around one fifth of the earth's terrestrial surface. The C₄ photosynthetic pathway has evolved at least 22 times independently in the grasses; C₄ species are more competitive than C₃ plants in open habitats with high light intensity and warm temperatures. The deeper relationships in the family have been resolved by recent molecular phylogenetic work. This has been translated into a modern classification which divides the grasses into twelve subfamilies and a number of

tribes The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English is in the discipline of anthropology. This definition is contested, in part due to confli ...

, with large tribes further divided into subtribes. Anomochlooideae,

Pharoideae Pharoideae is a subfamily of the true grass family Poaceae, containing the single tribe Phareae with the two genera ''Leptaspis'' and '' Pharus''. Its members grow on the shaded floors of tropical to warm temperate In geography, the ...

and

Puelioideae The Puelioideae is a subfamily of the true grass family Poaceae with two genera, ''Guaduella'' and ''Puelia'', each in its own tribe. Its members grow in the understory of rainforests. This subfamily is one of the earliest-diverging grass linea ...

are early diverging lineages containing only a few species. Most of the diversity falls into the two big BOP and

PACMAD The PACMAD clade (previously PACCMAD, PACCAD, or PACC) is one of two major lineages (or clades) of the true grasses ( Poaceae), regrouping six subfamilies and about 5700 species, more than half of all true grasses. Its sister group is the BOP ...

clades, which each contain roughly half of the family's species. C₄ lineages have only evolved in the PACMAD clade, whereas many lineages in the BOP clade have evolved adaptations to cold climate. While the higher-level classification of the grasses is now relatively well understood, taxonomic efforts continue at the species and genera level, and with continuing phylogenetic research, a number of names is likely to change. The list of genera below is therefore likely to evolve with further study.

Genera

Cortaderia_selloana_-_El_rio_San_Pedro_lleva_mucha_agua_by_tomasero_-_001

*''

Acamptoclados ''Eragrostis'' is a large and widespread genus of plants in the grass family, found in many countries on all inhabited continents and many islands. ''Eragrostis'' is commonly known as lovegrass or canegrass. The name of the genus is derived fr ...

'' *'' Achlaena'' *'' Achnatherum'' *''

Aciachne ''Aciachne'' is a genus of Latin American plants in the grass family. ; Species * '' Aciachne acicularis'' Laegaard - Costa Rica, Venezuela (Táchira, Mérida), Colombia, Ecuador, Peru, Bolivia, Argentina ( Catamarca) * '' Aciachne flagelli ...

'' *''

Acidosasa ''Acidosasa'' is a genus of East Asian bamboo in the grass family. ''Acidosasa'' is found primarily in Southern China, with 1 species in Vietnam. Its name is formed from Latin ''acidum'' ("sour") and '' Sasa'' (another bamboo genus), referring ...

'' *'' Acostia'' *'' Acrachne'' *'' Acritochaete'' *'' Acroceras'' *''

Actinocladum ''Actinocladum'' is a South American genus of bamboo in the grass family. ;Species The only known species is ''Actinocladum verticillatum.'' The species is widespread across Bolivia and much of Brazil.Renvoize, S. A. 1998. Gramíneas de Boliv ...

'' *''

Aegilops ''Aegilops'' is a genus of Eurasian and North American plants in the grass family, Poaceae. They are known generally as goatgrasses.

'' *'' Aegopogon'' *''

Aeluropus ''Aeluropus'' is a genus of Eurasian and African plants in the grass family, found primarily in desert regions. ; Species * ''Aeluropus badghyzii'' Tzvelev - Turkmenistan * '' Aeluropus laciniatus'' Khodash. - Iran * '' Aeluropus lagopoides'' ( ...

'' *'' Afrotrichloris'' *'' Agenium'' *''

Agnesia ''Agnesia'' is a genus of herbaceous South American bamboo in the grass family. It is named in honor of agrostologist (botanical specialist in the area of grasses) Mary Agnes Chase (1869-1963). The only known species is ''Agnesia lancifolia'', ...

'' *''

Agropyron ''Agropyron'' is a genus of Eurasian plants in the Poaceae, grass family), native to Europe and Asia but widely naturalized in North America. Species in the genus are common name, commonly referred to as wheatgrass. ; Species * ''Agropyron bada ...

'' *'' Agropyropsis'' *'' Agrostis'' *''

Aira ''Aira'' is a genus of Old World plants in the grass family, native to western and southern Europe, central and southwest Asia, plus Africa. The common name, shared with the similar related genera '' Deschampsia'' and ''Koeleria'', is hair-g ...

'' *''

Airopsis ''Airopsis'' is a genus of southern European and northern African plants in the grass family. ;Species The only accepted species is ''Airopsis tenella'', native to the western Mediterranean: Portugal, Spain, France incl Corsica, Italy incl Sic ...

'' *''

Alexfloydia ''Alexfloydia'' is a genus of perennial stoloniferous grasses in the panic grass subfamily of the Poaceae grass family. This genus is endemic to coastal eastern New South Wales in Australia. There is one known species, ''Alexfloydia repens'' ...

'' *'' Alloeochaete'' *'' Allolepis'' *'' Alloteropsis'' *''

Alopecurus ''Alopecurus'', or foxtail grass, is a common and widespread genus of plants in the grass family. It is common across temperate and subtropical parts of Eurasia, northern Africa, and the Americas, as well as naturalized in Australia and on vari ...

'' *''

Alvimia ''Alvimia'' is a Brazilian genus of bamboo in the Poaceae, grass family. It is native to the eastern coastal regions of the State of Bahia in eastern Brazil. ;Species # ''Alvimia auriculata'' Soderstr. & Londoño # ''Alvimia gracilis'' Soderst ...

'' *'' Amblyopyrum'' *''

Ammochloa ''Ammochloa'' is a genus of Mediterranean plants in the grass family, Poaceae. ; Species * '' Ammochloa involucrata'' Murb. - Morocco * '' Ammochloa palaestina'' Boiss. - Spain, Morocco, Algeria, Tunisia, Libya, Egypt, Palestine, Israel, Jordan ...

'' *'' Ammophila'' *''

Ampelodesmos ''Ampelodesmos'' is a genus of Mediterranean plants in the grass family, which is known by the common names stramma, Mauritania grass, rope grass, and dis(s) grass. It is classified in its own tribe Ampelodesmeae within the grass subfamily Pooi ...

'' *'' Amphibromus'' *'' Amphicarpum'' *''

Amphipogon ''Amphipogon'', the greybeard grasses, is a genus of Australian plants in the grass family. ; Species ; formerly included see '' Diplopogon Melanocenchris '' * ''Amphipogon humilis - Melanocenchris jacquemontii'' * ''Amphipogon setaceus - M ...

'' *'' Anadelphia'' *'' Ancistrachne'' *'' Ancistragrostis'' *'' Andropogon'' *''

Andropterum ''Andropterum'' is a genus of African plants in the grass family. There is only one known species, ''Andropterum stolzii'', native to Zimbabwe, Zambia, Mozambique, Tanzania, Malawi and Burundi.Cope, T.A. (2002). Flora Zambesiaca 10(4): 1-190. Roy ...

'' *''

Anemanthele ''Anemanthele'' is a genus of plants in the grass family native to New Zealand. The only known species is ''Anemanthele lessoniana'', often called gossamer grass or New Zealand wind grass or pheasant's tail grass. This is a naturally rare gra ...

'' *'' Aniselytron'' *''

Anisopogon ''Anisopogon'' is a genus of Australian plants in the Poaceae, grass family. The only known species is ''Anisopogon avenaceus'', native to Victoria (Australia), Victoria and New South Wales. It is known commonly as oat speargrass.

'' *'' Anomochloa'' *''

Anthaenantiopsis ''Anthaenantiopsis'' is a genus of South American plants in the grass family. ; Species * '' Anthaenantiopsis fiebrigii'' Parodi - Bolivia, Brazil, Argentina ( Salta, Jujuy), Paraguay ( Amambay) * '' Anthaenantiopsis perforata'' (Nees) Parodi - ...

'' *'' Anthaenantia'' *'' Anthephora'' *'' Anthochloa'' *''

Anthoxanthum ''Anthoxanthum'' (Latinised Greek for "yellow blossom"), commonly known as hornworts, vernal grasses, or vernalgrasses, is a genus of plants in the grass family. The generic name means 'Yellow flower' in Botanical Latin, referring to the colo ...

'' *''

Antinoria ''Antinoria'' is a genus of Mediterranean plants in the grass family. ; Species * '' Antinoria agrostidea'' (DC.) Parl. - Spain, Portugal, France, Italy, Morocco, Algeria, Libya, Tunisia * '' Antinoria insularis'' Parl. - Spain, Portugal, France ...

'' *'' Apera'' *'' Aphanelytrum'' *'' Apluda'' *''

Apochiton ''Apochiton'' is a genus of East African plants in the grass family. The only known species is ''Apochiton burttii'', native to the Kondoa District of north-central Tanzania. See also * List of Poaceae genera The true grasses (Poaceae) are ...

'' *''

Apoclada ''Apoclada'' is a genus of Brazilian bamboo in the grass family). The only known species is ''Apoclada simplex'', found in the forests of southeastern Brazil (States of Santa Catarina, Paraná, and São Paulo).Renvoize, S. A. 1988. Hatschbach ...

'' *'' Apocopis'' *''

Arberella ''Arberella'' is a genus of Neotropical bamboo in the grass family. ;Species # '' Arberella bahiensis'' - Venezuela ( Amazonas), Brazil (Bahia) # '' Arberella costaricensis'' - Costa Rica # '' Arberella dressleri'' - Panama # '' Arberella flacci ...

'' *''

Arctagrostis ''Arctagrostis'' is a genus of Arctic and Subarctic plants in the grass family, native to colder parts of Europe, Asia, and North America. ; SpeciesFredskild, B. 1996. A phytogeographical study of the vascular plants of West Greenland (62°20'-7 ...

'' *'' Arctophila'' *''

Aristida ''Aristida'' is a very nearly cosmopolitan genus of plants in the grass family. ''Aristida'' is distinguished by having three awns (bristles) on each lemma of each floret. The genus includes about 300 species found worldwide, often in arid warm ...

'' *'' Arrhenatherum'' *'' Arthragrostis'' *'' Arthraxon'' *'' Arthropogon'' *'' Arthrostylidium'' *''

Arundinaria ''Arundinaria'' is a genus of bamboo in the grass family the members of which are referred to generally as cane. ''Arundinaria'' is the only bamboo native to south and southeastern North America, with a native range from Maryland south to Florid ...

'' *''

Arundinella ''Arundinella'' is a widespread genus of plants in the grass family, common in many tropical and subtropical regions.Phipps, J. B. 1967. Studies in the Arundinelleae (Gramineae). V. The series of the genus ''Arundinella''. Canadian Journal of Bot ...

'' *''

Arundo ''Arundo'' is a genus of stout, perennial plants in the grass family. Description ''Arundo'' is native to southern Europe, North Africa, and much of temperate Asia as far east as Japan. They grow to 3–6 m tall, occasionally to 10 m, ...

'' *'' Arundoclaytonia'' *'' Asthenochloa'' *''

Astrebla ''Astrebla'' is a small genus of xerophytic (adapted to survive in an environment with little liquid water) grasses found only in Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the main ...

'' *''

Athroostachys ''Athroostachys'' is a Brazilian genus of bamboo in the grass family. The only known species is ''Athroostachys capitata,'' native to Brazil (States of Bahia, Mato Grosso, Paraná, Rio de Janeiro). See also * List of Poaceae genera The tr ...

'' *''

Atractantha ''Atractantha'' is a South American genus of bamboo in the grass family, native to Brazil, Colombia, and Venezuela. ;Species # '' Atractantha amazonica'' Judz. & L.G.Clark - Amazonas in Brazil, Amazonas in Venezuela, Vaupés in Colombia # '' ...

'' *''

Aulonemia ''Aulonemia'' is a genus of Latin American bamboo in the grass family. ;Species ;Formerly included see ''Colanthelia Olmeca'' * ''Aulonemia cingulata - Colanthelia cingulata'' * ''Aulonemia clarkiae - Olmeca clarkiae'' * ''Aulonemia fulgor ...

'' *'' Australopyrum'' *''

Austrochloris ''Austrochloris'' is a genus of Australian plants in the grass family. The only known species is ''Austrochloris dichanthioides'', found only in the State of Queensland.Lazarides, Michael 1972. A revision of Australian Chlorideae (Gramineae). Au ...

'' *''

Austrodanthonia ''Rytidosperma'' is a genus of plants in the grass family. Most of the species occur in Australasia, with a few in insular Southeast Asia, southern South America (Chile + Argentina), and certain islands of the Pacific (Hawaii + Easter Island).

'' *''

Austrofestuca ''Austrofestuca'', called beach fescue, is a genus of Australian and New Zealand plants in the grass family. The only accepted species is ''Austrofestuca littoralis'', native to seacoast regions in Australia (all states except Queensland) and Ne ...

'' *''

Austrostipa ''Austrostipa'' is a primarily Australian genus of plants in the grass family, commonly called speargrass. The genus includes species formerly included in the genus ''Stipa.'' All known species are native to Australia, most of them found nowher ...

'' *''

Avellinia ''Avellinia'' is a genus of Mediterranean plants in the grass family. The only known species is ''Avellinia festucoides'', found throughout much of the Mediterranean Region from Portugal and Morocco to Turkey. It is also reportedly naturalized i ...

'' *''

Avena ''Avena'' is a genus of Eurasian and African plants in the grass family. Collectively known as the oats, they include some species which have been cultivated for thousands of years as a food source for humans and livestock. They are widespre ...

'' *'' Axonopus'' *''

Bambusa ''Bambusa'' is a large genus of clumping bamboos. Most species of ''Bambusa'' are rather large, with numerous branches emerging from the nodes, and one or two much larger than the rest. The branches can be as long as 11 m (35 ft). The ...

'' *''

Baptorhachis ''Baptorhachis'' is a genus of Southwest African plants in the grass family.Clayton, W. D. 1987. Miscellaneous notes on Panicoid grasses. Kew Bulletin 42(2): 401–403 The only known species is ''Baptorhachis foliacea'', found only in Mozambique. ...

'' *'' Bealia'' *'' Beckeropsis'' *'' Beckmannia'' *'' Bellardiochloa'' *''

Bewsia ''Bewsia'' is a genus of African plants in the grass family. The only known species is ''Bewsia biflora'', widespread across much of sub-Saharan Africa from Ivory Coast to Tanzania to KwaZulu-Natal KwaZulu-Natal (, also referred to as KZN an ...

'' *'' Bhidea'' *'' Blepharidachne'' *''

Blepharoneuron ''Blepharoneuron'' is a genus of North American plants in the grass family. ; Species * '' Blepharoneuron shepherdii'' (Vasey) P.M.Peterson & Annable - northern Mexico (Chihuahua, Durango, Sonora, Zacatecas) * '' Blepharoneuron tricholepis'' (T ...

'' *'' Boissiera'' *'' Boivinella'' *'' Borinda'' *'' Bothriochloa'' *''

Bouteloua ''Bouteloua'' is a genus of plants in the grass family. Members of the genus are commonly known as grama grass. Taxonomy and systematics The genus was named for Claudio and Esteban Boutelou, 19th-century Spanish botanists. David Griffiths ...

'' *''

Brachiaria ''Brachiaria'', or signalgrass, is a genus of plants in the grass family native to tropical and subtropical regions of Asia, Africa, Australia, southern Europe, the Americas, and various islands.Brachyachne ''Brachyachne'' is a genus of African, Australian, and Southeast Asian plants in the grass family. ; Species See also * List of Poaceae genera The true grasses (Poaceae) are one of the largest plant families, with around 12,000 species ...

'' *''

Brachychloa ''Brachychloa'' is a genus of African plants in the grass family, native to Mozambique and South Africa. ; Species * '' Brachychloa fragilis'' S.M.Phillips - Mozambique, Limpopo, Kwazulu-Natal * '' Brachychloa schiemanniana'' (Schweick.) S.M.Phi ...

'' *'' Brachyelytrum'' *''

Brachypodium ''Brachypodium'' is a genus of plants in the grass family, widespread across much of Africa, Eurasia, and Latin America. The genus is classified in its own tribe Brachypodieae. Flimsy upright stems form tussocks. Flowers appear in compact spi ...

'' *''

Briza ''Briza'' is a genus of annual and perennial plants in the grass family, native to northern temperate regions of Eurasia, North Africa, and certain islands in the Atlantic. The group is generally referred to as the quaking grasses because the ...

'' *'' Bromuniola'' *''

Bromus ''Bromus'' is a large genus of grasses, classified in its own tribe Bromeae. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses. Estimates in the scientific literature of the number of species have ranged from 100 ...

'' *'' Brylkinia'' *''

Buchloe Buchloe (; Swabian: ''Buechla'') is a community raised to town status in 1954, lying in Ostallgäu district in Bavaria. Together with the neighbouring communities of Jengen, Lamerdingen and Waal, Buchloe belongs to the ''Verwaltungsgemeinschaft'' ...

'' *'' Buchlomimus'' *''

Buergersiochloa ''Buergersiochloa'' is a genus of New Guinean in the grass family. The only known species is ''Buergersiochloa bambusoides.'' See also *List of Poaceae genera The true grasses (Poaceae) are one of the largest plant families, with around 12, ...

'' *''

Calamagrostis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' *''

Calamovilfa ''Calamovilfa'' is a genus of North American plants in the grass family native to the United States and Canada. ; Species * '' Calamovilfa arcuata'' K.E.Rogers - OK AL AR TN GA KY * '' Calamovilfa brevipilis'' (Torr.) Scribn. - NJ NC S ...

'' *''

Calderonella ''Calderonella'' is a genus of Colombian and Panamanian plants in the Poaceae, grass family. The only known species is ''Calderonella sylvatica''. See also * List of Poaceae genera References External links Grassbase - The World Online Gras ...

'' *'' Calosteca'' *'' Calyptochloa'' *'' Camusiella'' *'' Capillipedium'' *''

Castellia ''Castellia'' is a genus of African and Eurasian plants in the grass family. The only known species is ''Castellia tuberculosa'', native to southern Europe (Spain, Sardinia, Greece), northern and northeastern Africa (Algeria, Libya, Morocco, Tuni ...

'' *''

Catabrosa ''Catabrosa'' is a small but widespread genus of plants in the grass family native to temperate areas of Eurasia, the Americas, and a few places in Africa. ''Catabrosa aquatica'' is in flower in Europe from June to August, and the seeds ripen f ...

'' *'' Catabrosella'' *'' Catalepis'' *''

Catapodium ''Catapodium'' is a genus of Eurasian and North African plants in the grass family. Species list The genus comprises the following species: * ''Catapodium demnatense'' (Murb.) Maire & Weiller - Morocco * ''Catapodium mamoraeum'' (Maire) Maire ...

'' *''

Cathestecum ''Cathestecum'' (common name false grama) is a genus of the North American plants in the grass family. The name is sometimes misspelled as ''Cathestechum''. ; SpeciesDavidse, G., M. Sousa Sánchez & A.O. Chater. 1994. Alismataceae a Cyperaceae ...

'' *'' Cenchrus'' *'' Centotheca'' *''

Centrochloa ''Centrochloa'' is a genus of Brazilian plants in the grass family. The only known species is ''Centrochloa singularis'', native to the states of Maranhão, Tocantins and Goiás in east-central Brazil. Some authorities consider ''Centrochloa'' to ...

'' *''

Centropodia ''Centropodia'' is a genus of Asian and African plants in the grass family. ; Species * '' Centropodia forsskalii'' (Vahl) Cope - Sahara, Middle East, Central Asia * '' Centropodia fragilis'' (Guinet & Sauvage) Cope - Sahara , Sinai, Arabian Pe ...

'' *''

Cephalostachyum ''Cephalostachyum'' is a genus of Asian and Madagascan bamboo in the grass family. The plants are of small to medium size compared to most other bamboo. Their choice habitats are mountain to lowland forests. ;Species ;formerly included see ...

'' *'' Chaboissaea'' *''

Chaetium ''Chaetium'' is a genus of Neotropical plants in the grass family. ; Species * '' Chaetium bromoides'' (J.Presl) Benth. - Mexico, Central America * '' Chaetium cubanum'' (C.Wright) Hitchc. - Cuba * '' Chaetium festucoides'' Nees - Colombia ( B ...

'' *'' Chaetobromus'' *'' Chaetopoa'' *'' Chaetopogon'' *'' Chaetostichium'' *'' Chamaeraphis'' *'' Chandrasekharania'' *'' Chasechloa'' *'' Chasmanthium'' *''

Chasmopodium ''Chasmopodium'' is a genus of African plants in the grass family.Chevalierella'' *'' Chikusichloa'' *''

Chimonobambusa ''Chimonobambusa'' is a genus of East Asian bamboo in the grass family. They are native to China, Japan, Vietnam, Myanmar, and the Himalayas. ;Species ;formerly included see '' Ampelocalamus Bambusa Chimonocalamus Drepanostachyum Himalayaca ...

'' *''

Chionachne ''Chionachne'' is a genus of Asian, Australian, and Papuasian plants in the grass family. Species * '' Chionachne biaurita'' Hack. - Luzon * '' Chionachne cyathopoda'' (F.Muell.) F.Muell. ex Benth. - New Guinea, northern Australia * ''Chionach ...

'' *'' Chionochloa'' *'' Chloachne'' *'' Chloris'' *'' Chlorocalymma'' *'' Chrysochloa'' *'' Chrysopogon'' *'' Chumsriella'' *'' Chusquea'' *'' Cinna'' *'' Cladoraphis'' *'' Clausospicula'' *'' Cleistachne'' *'' Cleistochloa'' *'' Cliffordiochloa'' *'' Cockaynea'' *'' Coelachne'' *'' Coelachyropsis'' *'' Coelachyrum'' *''

Coelorachis ''Coelorachis'' is a genus of plants in the grass family, widespread across much of Asia, Africa, Australia and the Americas. ''Coelorhachis'' is treated by some sources as part of the genus '' Mnesithea'', so the following species can general ...

'' *''

Coix ''Coix'' is a genus of Asian and Australian plants in the grass family. The best-known species is '' Coix lacryma-jobi,'' widely called Job's tears. Its variety ''Coix lacryma-jobi'' var. ''ma-yuen'' is cultivated in many warm regions as a s ...

'' *''

Colanthelia ''Colanthelia'' is a genus of South American bamboo in the grass family, native to southern Brazil and northeastern Argentina. ;SpeciesSmith, L.B., D. C. Wasshausen & R.M. Klein. 1981. Gramíneas. Gêneros: 1. Bambusa até 44. Chloris. 1(GRAM): ...

'' *'' Coleanthus'' *''

Colpodium ''Colpodium'' is a genus of plants in the grass family, native primarily to Asia but with a few species on certain mountains in Africa. ; SpeciesMill, R. R. 1985. ''Eremopoa, Nephelochloa, Catabrosella, Colpodium, Hyalopoa, Catabrosa, Paracolpo ...

'' *'' Commelinidium'' *'' Cornucopiae'' *''

Cortaderia ''Cortaderia'' is a genus of South American and Central American plants in the Poaceae grass family. Etymology The common name pampas grass, though strictly referring to ''C. selloana'', is frequently applied to all species in the genus (and so ...

'' *''

Corynephorus ''Corynephorus'' is a genus of European, North African, and Middle Eastern plants in the grass family.Cottea'' *'' Craspedorhachis'' *''

Crinipes ''Crinipes'' is a genus of plants in the Poaceae−grass family native to central Africa. Species Species of ''Crinipes'' include: * '' Crinipes abyssinicus'' (Hochst. ex A. Braun) Hochst. — endemic to Ethiopia * '' Crinipes longifolius'' C. ...

'' *'' Crithopsis'' *'' Crypsis'' *''

Cryptochloa ''Cryptochloa'' is a genus of Neotropical plants in the grass family, widespread across much of Mexico, Central America, and South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hem ...

'' *''

Ctenium ''Ctenium'' is a genus of African and American plants in the grass family. ; Species ; formerly included see ''Dactyloctenium Enteropogon Tetrapogon'' * ''Ctenium digitatum - Enteropogon dolichostachyus'' * ''Ctenium indicum - Tetrapogon ...

'' *'' Ctenopsis'' *''

Cutandia ''Cutandia'' is a genus of Asian and Mediterranean plants in the grass family. It is native to lands extending from Portugal and Cape Verde to Pakistan and Kazakhstan. ; Species * '' Cutandia dichotoma'' (Forssk.) Trab. - Asia + Africa from Alge ...

'' *'' Cyathopus'' *'' Cyclostachya'' *'' Cymbopogon'' *'' Cymbosetaria'' *''

Cynodon ''Cynodon'' is a genus of plants in the grass family. It is native to warm temperate to tropical regions of the Old World, as well as being cultivated and naturalized in the New World and on many oceanic islands. The genus name comes from Gre ...

'' *'' Cynosurus'' *'' Cyperochloa'' *'' Cyphochlaena'' *'' Cypholepis'' *''

Cyrtococcum ''Cyrtococcum'' is a genus of Asian, African, and Pacific Island plants in the grass family. ; Species * '' Cyrtococcum bosseri'' A.Camus - Madagascar * '' Cyrtococcum capitis-york'' B.K.Simon - Queensland * '' Cyrtococcum chaetophoron'' (Roe ...

'' *''

Dactylis ''Dactylis'' is a genus of Eurasian and North African plants in the bluegrass subfamily within the grass family. ''Dactylis'' is native to North Africa, they are found throughout the world, and are an invasive species. They are known in Englis ...

'' *'' Dactyloctenium'' *'' Daknopholis'' *'' Dallwatsonia'' *''

Danthonia ''Danthonia'' is a genus of Eurasian, North African, and American plants in the grass family. Members of this genus are sometimes referred to as oatgrass, but that common name is not restricted to this genus. Other common names include heathgra ...

'' *'' Danthoniastrum'' *''

Danthonidium ''Danthonidium'' is a genus of Indian plants in the grass family. The only known species is ''Danthonidium gammiei'', native to the State of Maharashtra in India India, officially the Republic of India (Hindi: ), is a country in South Asi ...

'' *''

Danthoniopsis ''Danthoniopsis'' is a genus of Asian and African plants in the grass family. ; Species * '' Danthoniopsis acutigluma'' Chippind. - Zaïre, Zambia * '' Danthoniopsis aptera'' R.I.S.Correia & Phipps - Angola * '' Danthoniopsis barbata'' (Nees) C ...

'' *'' Dasyochloa'' *'' Dasypoa'' *'' Dasypyrum'' *''

Davidsea ''Davidsea attenuata'' is a Sri Lankan species of bamboo in the grass family.Decaryella'' *'' Decaryochloa'' *''

Dendrocalamus ''Dendrocalamus'' is a tropical Asian genus of giant clumping bamboos in the grass family. It is found in the Indian subcontinent, China, and Southeast Asia. '' Dendrocalamus giganteus'' is one of the tallest of bamboos, capable of reaching heig ...

'' *'' Dendrochloa'' *''

Deschampsia ''Deschampsia'' is a genus of plants in the grass family, commonly known as hair grass or tussock grass. The genus is widespread across many countries.

'' *'' Desmazeria'' *''

Desmostachya ''Desmostachya'' is a genus of grass in the family Poaceae. Taxonomy The genus ''Desmostachya'' was originally published as ''Eragrostis'' sect. ''Desmostachya'' in ''The Flora of British India'' 7: 324. 1897. Somehow two prominent botanists, Jo ...

'' *''

Deyeuxia ''Deyeuxia'' is a genus of plants allied to the Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the gras ...

'' *'' Diandrochloa'' *''

Diandrolyra ''Diandrolyra'' is a genus of Brazilian plants in the grass family. ;Species # '' Diandrolyra bicolor'' Stapf - Espírito Santo # '' Diandrolyra pygmaea'' Soderstr. & Zuloaga ex R.P.Oliveira & L.G.Clark - Bahia # '' Diandrolyra tatianae'' Soders ...

'' *'' Diandrostachya'' *''

Diarrhena ''Diarrhena'', or beakgrain, is a genus of Asian and North American plants in the grass family. ; Species * ''Diarrhena americana'' P. Beauv. - east-central United States ( OK MO AR IL IN OH KY TN AL GA NC VA WV MD PA) * ''Diarrhe ...

'' *'' Dichaetaria'' *'' Dichanthelium'' *'' Dichanthium'' *''

Dichelachne ''Dichelachne'' is a genus of Australian, Indonesian, and Pacific Island plants in the grass family. They are known commonly as plumegrasses.Diectomis ''Diectomis'' is a genus of tropical plants in the Poaceae, grass family. The only known species is ''Diectomis fastigiata'', widespread across tropical parts of Africa, Asia, and the Americas.Dielsiochloa'' *'' Digastrium'' *''

Digitaria ''Digitaria'' is a genus of plants in the grass family native to tropical and warm temperate regions but can occur in tropical, subtropical, and cooler temperate regions as well. Common names include crabgrass, finger-grass, and fonio. They are ...

'' *'' Digitariopsis'' *'' Dignathia'' *''

Diheteropogon ''Diheteropogon'' is a genus of African plants in the grass family Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos an ...

'' *''

Dilophotriche ''Dilophotriche'' is a genus of West African plants in the grass family. ; Species * '' Dilophotriche occidentalis'' Jacq.-Fél. - Guinea * '' Dilophotriche pobeguinii'' Jacq.-Fél. - Guinea, Guinea-Bissau, Senegal, Burkina Faso * '' Dilopho ...

'' *'' Dimeria'' *'' Dimorphochloa'' *''

Dinebra ''Dinebra'' is a genus of Asian, African, and Pacific Island plants in the grass family. ; Species * '' Dinebra haareri'' (Stapf & C.E.Hubb.) P.M.Peterson & N.Snow - Kenya, Tanzania * '' Dinebra marquisensis'' (F.Br.) P.M.Peterson & N.Snow - M ...

'' *''

Dinochloa ''Dinochloa'' is a genus of tropical clumping high-climbing bamboos in the grass family. These species bear zigzag culms and fleshy fruits. They are found in the hill forests and lowland dipterocarp forest of southern China, Southeast Asia, a ...

'' *''

Diplachne ''Diplachne'' is a genus of plants in the grass family, widespread over much of the world.Diplopogon ''Diplopogon'' is a genus of Australian plants in the grass family. It was first described in 1810 by Robert Brown. it contains only a singles species, ''Diplopogon setaceus'', found in southwestern Australia. It is similar to the genus '' Amphi ...

'' *'' Dissanthelium'' *'' Dissochondrus'' *''

Distichlis ''Distichlis'' is a genus of American and Australian plants in the grass family.Bell, H. L. & J. T. Columbus. 2008. Proposal for an expanded ''Distichlis'' (Poaceae, Chloridoideae): Support from molecular, morphological, and anatomical charact ...

'' *'' Drake-Brockmania'' *'' Dregeochloa'' *'' Drepanostachyum'' *'' Dryopoa'' *'' Dupontia'' *'' Duthiea'' *'' Dybowskia'' *'' Eccoilopus'' *'' Eccoptocarpha'' *'' Echinaria'' *''

Echinochloa ''Echinochloa'' is a very widespread genus of plants in the grass family and tribe Paniceae. Some of the species are known by the common names barnyard grass or cockspur grass. Some of the species within this genus are millets that are grown ...

'' *''

Echinolaena ''Echinolaena'' is a genus of plants in tribe Paspaleae of the grass family, native to the New World tropics.Echinopogon'' *'' Ectrosia'' *'' Ectrosiopsis'' *''

Ehrharta ''Ehrharta'' is a genus of plants in the grass family.Thunberg, Carl Peter. 1779. Kongliga Vetenskaps Academiens Handlingar 40: 217, pl. 8 Most of the species are native to Africa, with a few from Southeast Asia and from various islands in the A ...

'' *''

Ekmanochloa ''Ekmanochloa'' is a genus of plants in the grass family endemic to Cuba. Description Its habit is a perennial grass. Culms are erect; 38–63.25–100 cm long. Culm-nodes are constricted or swollen. Leaves are differentiated into sheath ...

'' *''

Eleusine ''Eleusine'' is a genus of Asian, African, and South American plants in the grass family,Elionurus ''Elionurus'' is a genus of Asian, African, Australian, and Neotropical plants in the grass family. ; Species ; formerly included see '' Bothriochloa Lasiurus ''Lasiurus'' is a genus of bats in the family Vespertilionidae Vespertilion ...

'' *'' Elymandra'' *'' Elymus'' *'' Elytrigia'' *''

Elytrophorus ''Elytrophorus'' is a genus of Asian, African, and Australian plants in the grass family.Elytrostachys ''Elytrostachys'' is a genus of bamboo (tribe (biology), tribe Bambuseae of the family (biology), family Poaceae), found in the rainforests from Honduras to Venezuela. ;Species # ''Elytrostachys clavigera'' McClure - Costa Rica, Honduras, Nicar ...

'' *'' Enneapogon'' *''

Enteropogon ''Enteropogon'' is a genus of tropical and subtropical plants in the grass family. It is widespread across many parts of Asia, Africa, Australia, the Americas, and various islands.Entolasia'' *'' Entoplocamia'' *'' Eragrostiella'' *''

Eragrostis ''Eragrostis'' is a large and widespread genus of plants in the grass family, found in many countries on all inhabited continents and many islands. ''Eragrostis'' is commonly known as lovegrass or canegrass. The name of the genus is derived fr ...

'' *'' Eremium'' *''

Eremochloa ''Eremochloa'' is a genus of Asian and Australian plants in the grass family. ; SpeciesPohl, R. W. 1994. 171. ''Eremochloa'' Buse. 6: 397. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónom ...

'' *'' Eremopoa'' *'' Eremopogon'' *''

Eremopyrum ''Eremopyrum'' is a genus Eurasian and North African plants in the grass family. One species, '' Eremopyrum triticeum'' has become widely established as a weed in parts of North America. All the species are annuals with a dense, 2-sided, spike ...

'' *''

Eriachne ''Eriachne'' (common name Wanderrie grass) is a genus of plants in the grass family. Most of the species are found only in Australia, with the ranges of a few extending northward into New Guinea, parts of Asia, and Micronesia. It is found in ar ...

'' *'' Erianthecium'' *'' Erianthus'' *''

Eriochloa ''Eriochloa'' is a widespread genus of plants in the grass family, commonly called cupgrass. They are found across much of Africa, Asia, Australia, and the Americas, plus a few places in European Russia. ; Species * ''Eriochloa acuminata'' &ndas ...

'' *''

Eriochrysis ''Eriochrysis'' is a genus of African and Neotropical plants in the grass family. ; Species * ''Eriochrysis brachypogon'' (Stapf) Stapf - tropical + southern Africa - from Senegal to Eswatini * ''Eriochrysis cayennensis'' P.Beauv. - tropical Am ...

'' *'' Erioneuron'' *'' Euclasta'' *'' Eulalia'' *'' Eulaliopsis'' *''

Eustachys ''Eustachys'' (fan grass or fingergrass) is a genus of tropical and subtropical plants in the Poaceae, grass family. It is native primarily to warmer parts of the Americas, with a few species in Africa and Asia. Species Species include: * ''Eu ...

'' *'' Euthryptochloa'' *''

Exotheca ''Exotheca'' is a monotypic genus of African and Southeast Asian plants in the grass family. The only known species is ''Exotheca abyssinica'', which has a disjunct (discontinuous) distribution. It is native to Vietnam and also to eastern and s ...

'' *''

Fargesia ''Fargesia'' is a genus of flowering plants in the grass family. These bamboos are native primarily to China, with a few species in Vietnam and in the eastern Himalayas. Some species are cultivated as ornamentals, with common names including umbr ...

'' *'' Farrago'' *'' Fasciculochloa'' *''

Festuca ''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on ever ...

'' *'' Festucella'' *'' Festucopsis'' *''

Filgueirasia ''Filgueirasia'' is a genus of Brazilian bamboo in the grass family. Members of the genus were originally published as species of ''Apoclada'' and were classified in that genus for many years.McClure, F. 1973. Genera of Bamboos Native to the Ne ...

'' *'' Fingerhuthia'' *''

Froesiochloa ''Froesiochloa'' is a genus of South American plants in the grass family. The only known species is ''Froesiochloa boutelouoides'', native to Guyana, French Guiana, and Brazil (Amapá, Pará).Judziewicz, E. J. 1990. Family 187. Poaceae (Gramine ...

'' *''

Garnotia ''Garnotia'' is a genus of Asian, Australian, and tropical island plants in the grass family. Several of the species are native to Sri Lanka and southern India. ; Species ; formerly included see ''Arundinella Asthenochloa Panicum ''Pan ...

'' *''

Gastridium ''Gastridium'' is a genus of plants in the grass family. Species of the genus are found in Africa and Eurasia. These grasses are sometimes called nit grass. ; Species The following species are recognised in the genus ''Gastridium'': * '' Gastri ...

'' *'' Gaudinia'' *'' Gaudinopsis'' *'' Germainia'' *''

Gerritea ''Gerritea'' is a genus of Bolivian plants in the family Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and ...

'' *''

Gigantochloa ''Gigantochloa'' is a tropical Asian and Papuasian genus of giant clumping bamboos in the grass family. It is found in southern China, Southeast Asia, the Indian subcontinent, and New Guinea. ;Species ;Formerly included see ''Bambusa Dendrocal ...

'' *'' Gilgiochloa'' *'' Glaziophyton'' *''

Glyceria ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' *''

Glyphochloa ''Glyphochloa'' is a genus of India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world ...

'' *''

Gouinia ''Gouinia'' is a genus of Latin American plants in the grass family.Catasus Guerra, L. 1997. Las gramíneas (Poaceae) de Cuba, I. Fontqueria 46: –ii 1–259. ; Species * '' Gouinia barbata'' (Hack.) Swallen - Pernambuco, Paraíba, Rio Grande ...

'' *'' Gouldochloa'' *''

Graphephorum ''Graphephorum'' is a genus of North American plants in the grass family. ; Species * ''Graphephorum melicoides'' (Michx.) Desv. - Ontario, Québec, New Brunswick, Nova Scotia, Newfoundland, Maine, New Hampshire, Vermont, New York, Michigan, ...

'' *'' Greslania'' *'' Griffithsochloa'' *'' Guaduella'' *'' Gymnachne'' *'' Gymnopogon'' *''

Gynerium ''Gynerium'' is a monotypic genus of Neotropical plants in the grass family, native to Mexico and Colombia, Central America, South America, and the West Indies. It is classified in its own tribe Gynerieae. The sole species in the genus is ''G ...

'' *''

Habrochloa ''Habrochloa'' is a genus of African plants in the grass family. The only known species is ''Habrochloa bullockii'' native to Cameroon, Tanzania, Malawi, Zambia, and Zimbabwe Zimbabwe (), officially the Republic of Zimbabwe, is a landl ...

'' *''

Hackelochloa ''Hackelochloa'' is a genus of Asian and African plants in the grass family. The genus was named after Eduard Hackel, an Austrian botanist, by Otto Kuntze, in 1891. Species *'' Hackelochloa granularis'' ( L.) Kuntze - sub-Saharan Africa; ...

'' *''

Hainardia ''Hainardia'' is a genus of coastal plants in the grass family, native to the Mediterranean Basin. The only known species is ''Hainardia cylindrica'', known by several common names, including barbgrass, one-glumed hard-grass, and thintail. It ...

'' *''

Hakonechloa ''Hakonechloa'' is a genus of bunchgrass in the tribe Molinieae of the grass family, Poaceae, native to eastern Asia. ''Hakonechloa macra'', with the common names Hakone grass and Japanese forest grass, is the only species in the monotypic genu ...

'' *''

Halopyrum ''Halopyrum'' is a genus of Asian and African plants in the grass family. The only known species is ''Halopyrum mucronatum'', native to the Indian Subcontinent, Iran, the Arabian Peninsula, Socotra, Madagascar, and eastern + northeastern Africa ( ...

'' *'' Harpachne'' *''

Harpochloa ''Harpochloa'' is a genus of African plants in the grass family, common name caterpillar grass. SpeciesGibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of spe ...

'' *'' Helictotrichon'' *'' Helleria'' *''

Hemarthria ''Hemarthria'' is a genus of herbaceous plants in the grass family. They occur in the tropical and subtropical Old World, especially in China and Southeast Asia, with some species in Africa, Australia, and southern Europe.

'' *'' Hemisorghum'' *''

Henrardia ''Henrardia'' is a genus of Asian plants in the grass family. ; Species * '' Henrardia persica'' (Boiss.) C.E.Hubb. - Kazakhstan, Kyrgyzstan, Turkmenistan, Uzbekistan, Tajikistan, Afghanistan, Iran, Turkey, Pakistan, Syria, Lebanon * '' Henrar ...

'' *''

Hesperostipa ''Hesperostipa'' is a genus of grasses in the family Poaceae. Members of the genus are commonly known as needle-and-thread grass or needlegrass. The ''Hesperostipa'' species, formerly called ''Stipa'', are endemic to North America. The new nam ...

'' *'' Heterachne'' *'' Heteranthelium'' *'' Heteranthoecia'' *'' Heterocarpha'' *''

Heteropholis ''Heteropholis'' is a genus of African and Sri Lankan plants in the grass family. ; Species * '' Heteropholis benoistii'' A.Camus - Madagascar * '' Heteropholis nigrescens'' (Thwaites) C.E.Hubb. - Sri Lanka * '' Heteropholis sulcata'' (Stapf) ...

'' *'' Heteropogon'' *'' Hibanobambusa'' *'' Hickelia'' *''

Hierochloe ''Hierochloe'' is a genus of plants in the grass family known generally as sweetgrass. These are perennial rhizomatous grasses found primarily in temperate and subarctic regions of Eurasia and North America, although some species extend southward ...

'' *''

Hilaria The Hilaria (; Latin "the cheerful ones", a term derived from the borrowed adjective grc, ἱλαρός "cheerful, merry") were ancient Roman religious festivals celebrated on the March equinox to honor Cybele. Origins The term seems origi ...

'' *'' Hitchcockella'' *''

Holcolemma ''Holcolemma'' is a genus of African, Asian, and Australian plants in the grass family. ; Species * '' Holcolemma canaliculatum'' (Steud.) Stapf & C.E.Hubb. - Tanzania, India (Tamil Nadu), Sri Lanka * '' Holcolemma dispar'' Clayton - Queensla ...

'' *''

Holcus ''Holcus'' (soft-grass or velvetgrass) is a genus of African and Eurasian plants in the oat tribe within the grass family. ''Holcus'' species are used as food plants by the larvae of some Lepidoptera species including '' Coleophora lixella'' ...

'' *'' Homolepis'' *'' Homopholis'' *'' Homozeugos'' *''

Hookerochloa ''Hookerochloa'' is a genus of Australian plants in the grass family. ;Species # ''Hookerochloa eriopoda'' (Vickery) S.W.L.Jacobs - Queensland, New South Wales, Victoria # ''Hookerochloa hookeriana'' (F.Muell. ex Hook.f.) E.B.Alexeev - New South ...

'' *'' Hordelymus'' *''

Hordeum ''Hordeum'' is a genus of annual and perennial plants in the grass family. They are native throughout the temperate regions of Africa, Eurasia, and the Americas. One species, ''Hordeum vulgare'' (barley), has become of major commercial importan ...

'' *'' Hubbardia'' *'' Hubbardochloa'' *'' Humbertochloa'' *'' Hyalopoa'' *'' Hydrochloa'' *'' Hydrothauma'' *'' Hygrochloa'' *''

Hygroryza ''Hygroryza'' (watergrass) is a genus of Asian plants in the grass family. ;Species The only known species is ''Hygroryza aristata,'' (Asian watergrass) native to China (Fujian, Guangdong, Hainan, Taiwan, Yunnan), Bangladesh, Cambodia, India ( ...

'' *'' Hylebates'' *''

Hymenachne ''Hymenachne'' is a genus of widespread wetlands plants that is in the grass family. They may be known commonly as marsh grasses. They are distributed in tropical and subtropical regions of Asia, the Americas, and the Pacific Islands.Clarkson, J. ...

'' *''

Hyparrhenia ''Hyparrhenia'' is a genus of grasses. Many species are known commonly as thatching grass. They are mostly native to tropical Africa; some can be found in warmer areas in temperate Eurasia, Australia, and Latin America. These are annual and pere ...

'' *'' Hyperthelia'' *'' Hypogynium'' *'' Hypseochloa'' *'' Hystrix'' *'' Ichnanthus'' *''

Imperata ''Imperata'' is a small but widespread genus of tropical and subtropical grasses, commonly known as satintails. Satintail grass species are perennial rhizomatous herbs with solid, erect stems and silky inflorescences. The best known species is ...

'' *''

Indocalamus ''Indocalamus'' is a genus of about 35 species of flowering plants in the grass family (Poaceae), native to China, Vietnam and Japan. They are quite small evergreen bamboos normally up to in height, initially forming clumps and then spreading to ...

'' *''

Indopoa ''Indopoa'' is a genus of Indian plants in the Poaceae, grass family. The only known species is ''Indopoa paupercula'', native to the States of Maharashtra and Karnataka in India.Indosasa'' *'' Isachne'' *'' Isalus'' *''

Ischaemum ''Ischaemum'' is a taxonomically one of the most formidable genera in a huge tribe Andropogoneae belonging to the grass family, widespread in tropical and semitropical regions in many countries. Many species are known commonly as murainagrass. ...

'' *'' Ischnochloa'' *'' Ischnurus'' *'' Iseilema'' *'' Ixophorus'' *''

Jansenella ''Jansenella'' is a genus of Asian plants in the grass family. ; Species * '' Jansenella griffithiana'' (C.Muell.) Bor - India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the List of countries and ...

'' *'' Jardinea'' *'' Jouvea'' *'' Joycea'' *'' Kampochloa'' *'' Kaokochloa'' *''

Karroochloa ''Tribolium '' is a genus of African plants in the Poaceae, grass family, native to South Africa and neighboring countries. ; Species References

{{Taxonbar, from=Q2803063 Danthonioideae Poaceae genera ...

'' *'' Kengia'' *''

Kengyilia ''Kengyilia'' is a genus of Asian plants in the grass family. The genus is named in honor of Yi Li Keng. ; Species * '' Kengyilia alatavica'' (Drobow) J.L.Yang, C.Yen & B.R.Baum - Gansu, Xinjiang, Tibet, Mongolia, Kazakhstan, Kyrgyzstan * '' Ken ...

'' *'' Kerriochloa'' *''

Koeleria ''Koeleria'' is a common and widespread genus of plants in the grass family, found on all continents except Antarctica and on various oceanic islands. It includes species known generally as Junegrasses. The genus was named after German botanist ...

'' *'' Lagurus'' *'' Lamarckia'' *'' Lamprothyrsus'' *'' Lasiacis'' *''

Lasiorhachis ''Lasiorhachis'' is a genus of flowering plant in the family Poaceae, native to Madagascar. The taxon was first described as a subdivision of ''Andropogon'' by Eduard Hackel in 1889 and raised to a genus by Otto Stapf (botanist), Otto Stapf in 19 ...

'' *''

Lasiurus ''Lasiurus'' is a genus of bats in the family Vespertilionidae Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilio ...

'' *''

Lecomtella ''Lecomtella'' is a genus of grasses with the sole species ''Lecomtella madagascariensis'', native to Madagascar. It is the only genus in the tribe Lecomtelleae. The species and genus were described by Aimée Antoinette Camus in 1925. ''L. mada ...

'' *''

Leersia ''Leersia'' is a genus of plants in the grass family which includes species known generally as cutgrasses. The genus is widespread across many countries on all the inhabited continents. It was named for the German botanist Johann Daniel Leers ...

'' *'' Lepargochloa'' *''

Leptagrostis ''Leptagrostis'' is a genus of bunchgrasses in the tribe Molinieae of the grass family, Poaceae, native to eastern Africa. The only known species is ''Leptagrostis schimperiana''. It is endemic to Ethiopia Ethiopia, , om, Itiyoophiyaa, ...

'' *''

Leptaspis ''Leptaspis'' is a genus of Paleotropical plants in the Poaceae, grass family, native to Africa, southern Asia, northern Australia, and a few islands of the western Pacific.Turner, I.M. (1995 publ. 1997). A catalogue of the Vascular Plants of Mal ...

'' *''

Leptocarydion ''Leptocarydion'' is a genus of African and Arabic plants in the grass family.Peterson, P. M., K. Romaschenko & Y. Herrera Arrieta. 2014. A molecular phylogeny and classification of the Cteniinae, Farragininae, Gouiniinae, Gymnopogoninae, Perotid ...

'' *''

Leptochloa ''Leptochloa'' is a widespread genus of Asian, African, Australian, and American plants in the grass family. Members of the genus are commonly known as sprangletops. The generic name is derived from the Greek words ληπτος (''leptos''), me ...

'' *'' Leptochloris'' *'' Leptocoryphium'' *'' Leptoloma'' *''

Leptosaccharum ''Eriochrysis'' is a genus of African and Neotropical plants in the grass family. ; Species * '' Eriochrysis brachypogon'' (Stapf) Stapf - tropical + southern Africa - from Senegal to Eswatini * '' Eriochrysis cayennensis'' P.Beauv. - tropical ...

'' *'' Leptothrium'' *'' Lepturella'' *'' Lepturidium'' *'' Lepturopetium'' *''

Lepturus ''Lepturus'' (common name thintail) is a genus of plants in the grass family, native to Asia, Africa, Australia, and various islands in the Indian and Pacific Oceans. ; Species * '' Lepturus anadabolavensis'' A.Camus - Madagascar * '' Lepturus a ...

'' *'' Leucophrys'' *'' Leucopoa'' *''

Leymus ''Leymus'' is a genus of plants in the grass family Poaceae (Gramineae). It is widespread across Europe, Asia, and the Americas. * ''Leymus aemulans'' - Xinjiang, Central Asia * ''Leymus ajanensis'' - Siberia, Russian Far East, Alaska * '' Ley ...

'' *'' Libyella'' *'' Limnas'' *''

Limnodea ''Limnodea'', with the common name Ozark grass, is a genus of North American plants in the grass family.Nuttall, Thomas. 1835. Transactions of the American Philosophical Society, new series 5(6 ">Nuttall,_Thomas._1835.__T_...

'' *''Limnopoa.html" ;"title="/nowiki>): 142–143">">Nuttall, Thomas. 1835. T ...

'' *''Limnopoa">/nowiki>): 142–143">">Nuttall, Thomas. 1835. T ...

'' *''Limnopoa'' *''Lindbergella'' *''Linkagrostis'' *''Lintonia'' *''Lithachne'' *''Littledalea'' *''Loliolum'' *''Lolium'' *''Lombardochloa'' *''Lophacme'' *''Lophatherum'' *''Lopholepis'' *''

Lophopogon ''Lophopogon'' is a genus of Indian plants in the Poaceae, grass family. ; SpeciesBor, N. L. 1960. Grasses of Burma, Ceylon, India and Pakistan (excluding Bambuseae) i–767. Pergamon Press, Oxford * ''Lophopogon kingii'' Hook.f. - Bihar * ''Lop ...

'' *'' Lophopyrum'' *''

Lorenzochloa ''Lorenzochloa'' is a monotypic genus of perennial plants in the grass family. The only known species is ''Lorenzochloa erectifolia'' They are native to South America. It was formerly placed in the Ortachne genus, as ''Ortachne erectifolia'', u ...

'' *''

Loudetia ''Loudetia'' is a genus of African, Arabian, and South American plants in the grass family.Loudetiopsis'' *'' Louisiella'' *'' Loxodera'' *''

Luziola ''Luziola'' (watergrass) is a genus of New World in the grass family, native to North and South America including the West Indies. ; Species * '' Luziola bahiensis'' (Steud.) Hitchc. - South America ( Colombia to Argentina), Greater Antilles, C ...

'' *''

Lycochloa ''Lycochloa'' is a genus of Lebanese plants in the grass family. The only known species is ''Lycochloa avenacea'', found only in Lebanon Lebanon ( , ar, لُبْنَان, translit=lubnān, ), officially the Republic of Lebanon () or the L ...

'' *''

Lycurus ''Lycurus'' is a small genus of New World plants in the grass family, native to North and South America. These grasses are known commonly as wolfstails. ; Species * '' Lycurus phalaroides'' Kunth - Mexico, Guatemala, Colombia, Ecuador, Peru, B ...

'' *'' Lygeum'' *''

Maclurolyra ''Maclurolyra'' is a genus of Neotropical plants in the grass family. The only known species is ''Maclurolyra tecta'', native to Panamá and Colombia. The genus is named in honor of Floyd Alonzo McClure Floyd Alonzo McClure (14 August 1897, S ...

'' *'' Maillea'' *'' Malacurus'' *''

Maltebrunia ''Maltebrunia'' is a genus of African plants in the grass family. ; Species * '' Maltebrunia leersioides'' Kunth – Madagascar * '' Maltebrunia letestui'' (Koechlin) Koechlin – Cameroon, Gabon Gabon (; ; snq, Ngabu), officially the G ...

'' *''

Manisuris ''Manisuris'' is a genus of Indian plants in the grass family. The only known species is ''Manisuris myurus'', native to Tamil Nadu in southern India. Formerly included species Numerous species are now regarded as better suited in other genera, ...

'' *'' Megalachne'' *'' Megaloprotachne'' *'' Megastachya'' *'' Melanocenchris'' *''

Melica ''Melica'' is a genus of perennial grasses known generally as melic or melic grass. They are found in most temperate regions of the world. Melic grasses are clumping to short-rhizomatous grasses. They have flowering culms up to tall bearing ...

'' *''

Melinis ''Melinis'' is a genus of African and Arabian plants in the grass family. The generic name is derived from the Greek ''meline'' meaning "millet". ; Species ; formerly included numerous species now regarded as better suited to ''Tricholaena ...

'' *'' Melocalamus'' *''

Melocanna ''Melocanna'' is a genus of Asian clumping bamboo in the grass family. The 48-year cycle of '' M. baccifera'' in northeastern India is responsible for the phenomenon called "''mautam''" or " bamboo death", in which large populations of bamboo f ...

'' *''

Merostachys ''Merostachys'' is a Neotropical genus of bamboo in the grass family. It is found in South America and Central America from Belize to Paraguay. ;Species ;Formerly included see ''Athroostachys Rhipidocladum'' * ''Merostachys capitata - Athroos ...

'' *''

Merxmuellera ''Merxmuellera'' is a genus of African grasses named for Hermann Merxmueller, a 20th century German botanist and taxonomist who was an expert on African flora. Species ''Merxmuellera'' contains the following species: * '' Merxmuellera ambalavao ...

'' *''

Mesosetum ''Mesosetum'' is a genus of Neotropical plants in the grass family, native to North and South America including the West Indies The West Indies is a subregion of North America, surrounded by the North Atlantic Ocean and the Caribbean Se ...

'' *''

Metasasa ''Acidosasa'' is a genus of East Asian bamboo in the grass family. ''Acidosasa'' is found primarily in Southern China, with 1 species in Vietnam. Its name is formed from Latin ''acidum'' ("sour") and '' Sasa'' (another bamboo genus), referring ...

'' *'' Metcalfia'' *'' Mibora'' *'' Micraira'' *'' Microbriza'' *'' Microcalamus'' *''

Microchloa ''Microchloa'', or smallgrass, is a genus of tropical and subtropical plants in the grass family, native to Africa, southern Asia, northern Australia, and the warmer parts of the Western Hemisphere.Microlaena ''Microlaena'' is a genus of grass with a single species ''Microlaena stipoides'' or ''Ehrharta stipoides''. It occurs naturally in all states of Australia as well as in New Zealand, Papua New Guinea, Indonesia and the Philippines.

'' *'' Micropyropsis'' *'' Micropyrum'' *''

Microstegium ''Microstegium'' is a genus of African, Asian, and Pacific Island plants in the sorghum tribe within the grass family. Browntop is a common name. ; Species ; formerly included see ''Ischaemum ''Ischaemum'' is a taxonomically one of the m ...

'' *'' Mildbraediochloa'' *'' Milium'' *'' Miscanthidium'' *''

Miscanthus ''Miscanthus'', or silvergrass, is a genus of African, Eurasian, and Pacific Island plants in the grass family, Poaceae. ; Species * '' Miscanthus changii'' Y.N.Lee – Korea * '' Miscanthus depauperatus'' Merr. – the Philippines * '' Miscant ...

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Mnesithea ''Mnesithea'', or jointtail grass, is a genus of Asian, Australian, and Pacific Island plants in the grass family. ; Species * '' Mnesithea annua'' (Lazarides) de Koning & Sosef - Western Australia * '' Mnesithea formosa'' (R.Br.) de Koning & ...

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Mniochloa ''Mniochloa'' is a genus of Cuban plants in the grass family. The only known species is ''Mniochloa pulchella'', native to eastern Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country ...

'' *'' Molineriella'' *''

Molinia ''Molinia'', or moor grass, is a genus of two species of flowering plants in the grass family, native to damp moorland in Eurasia and northern Africa. They are both herbaceous perennial grasses. The genus is named after Juan Ignacio Molina, ...

'' *'' Moliniopsis'' *'' Monachather'' *'' Monanthochloe'' *'' Monelytrum'' *'' Monium'' *'' Monocladus'' *'' Monocymbium'' *'' Monodia'' *'' Mosdenia'' *''

Muhlenbergia ''Muhlenbergia'' is a genus of plants in the grass family. The genus is named in honor of the German-American amateur botanist Gotthilf Heinrich Ernst Muhlenberg (1753-1815). Many of the species are known by the common name muhly. The greatest ...

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Mullerochloa ''Mullerochloa'' is a monotypic genus of flowering plants belonging to the family Poaceae. It just contains one species, ''Mullerochloa moreheadiana'' (F.M.Bailey) K.M.Wong It is native to Queensland in north-eastern Australia. The grass forms ...

'' *'' Munroa'' *''

Myriocladus ''Myriocladus'' is a South American genus of bamboo in the grass family. It is found in the sandstone tablelands of Venezuela, Guyana, Suriname, and northern Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Por ...

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Myriostachya ''Myriostachya'' is a genus of Asian plants in the grass family. The only known species is ''Myriostachya wightiana'', native to India, Bangladesh, Sri Lanka, Myanmar, Thailand, Sumatra, and Peninsular Malaysia Peninsular Malaysia ( ms, Sem ...

'' *'' Narduroides'' *'' Nardus'' *'' Narenga'' *''

Nassella ''Nassella'', or needlegrass, is a New World genus of over 100 perennial bunchgrasses found from North America through South America. The Latin word ''nassa'' refers to "a basket with a narrow neck". It is usually considered segregate from the ge ...

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Nastus ''Nastus'' is a genus of slender, erect, scrambling or climbing bamboos in the grass family. It is native to Southeast Asia, Papuasia, and certain islands in the Indian Ocean (Madagascar and Réunion). ;Species ;formerly included see ''Arundi ...

'' *'' Neeragrostis'' *''

Neesiochloa ''Neesiochloa'' is a genus of Brazilian plants in the grass family. The only known species is ''Neesiochloa barbata''. It is native to eastern Brazil (Bahia, Rio Grande do Norte, Ceará, Piauí). The genus name of ''Neesiochloa'' is in honour of ...

'' *'' Nematopoa'' *'' Neobouteloua'' *''

Neohouzeaua ''Neohouzeaua'' is a genus of Asian bamboo within the Poaceae, grass family).Neostapfia'' *'' Neostapfiella'' *'' Nephelochloa'' *'' Neurachne'' *'' Neurolepis'' *''

Neyraudia ''Neyraudia'' is a genus of Asian and African plants in the grass family. ; Species * '' Neyraudia arundinacea'' (L.) Henrard - Zaire, Tanzania, Malawi, Madagascar, India, Nepal, Pakistan, Tajikistan, Indochina, Hainan, Java, Malaysia, Sumatra ...

'' *''

Notochloe ''Notochloe'' is a genus of Australian plants in the grass family. ;Species The only known species is ''Notochloe microdon'', found only in New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = ...

'' *'' Notodanthonia'' *''

Ochlandra ''Ochlandra'' is a genus of Indian bamboo in the grass family). The species are endemic to the Western Ghats (India), except for one species from Sri Lanka. ;Species ;Formerly included see '' Cathariostachys Nastus Schizostachyum Valiha ...

'' *'' Ochthochloa'' *'' Odontelytrum'' *''

Odyssea ''Odyssea'' is a genus of African and Arabian plants in the grass family. The genus is named after the ancient Greek tale "The Odyssey," in allusion to the long journey the type species has been taken through nine genera before settling in this ...

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Olmeca ''Olmeca'' is a genus of Mesoamerican bamboo in the grass family. ''Olmeca'' is the only known New World bamboo having large fleshy fruits. It also has rhizomes with long necks and very open clumps. The genus is named for the Olmec peoples o ...

'' *'' Olyra'' *''

Ophiochloa ''Ophiochloa'' is a genus of Brazilian plants in the grass family. ''Ophiochloa'' is closely related to ''Axonopus'', and some authorities consider the two groups to be a single genus. It is found on serpentine soils in the State of Goiás in c ...

'' *'' Ophiuros'' *''

Opizia ''Bouteloua'' is a genus of plants in the grass family. Members of the genus are commonly known as grama grass. Taxonomy and systematics The genus was named for Claudio and Esteban Boutelou, 19th-century Spanish botanists. David Griffiths ...

'' *'' Oplismenopsis'' *''

Oplismenus ''Oplismenus'' is a small genus of annual or perennial grasses, commonly known as basketgrass, found throughout the tropics, subtropics, and in some cases, temperate regions of the Americas, Africa, Asia, and Australia. The systematics of the ...

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Orcuttia ''Orcuttia'' is a genus of grass in the family Poaceae. Plants grow up to tall, usually with many stems emerging from the base of the plant, and forming a tuft. The spikelets (groups of flowers) are several-flowered, with reduced upper florets. ...

'' *'' Oreobambos'' *'' Oreochloa'' *''

Orinus ''Orinus'' is a genus of Asian plants in the grass family. ; Species * '' Orinus alticulmus'' L.B.Cai & Tong L.Zhang - Qinghai * '' Orinus anomala'' Keng f. - Qinghai, Sichuan * ''Orinus kokonorica'' (K.S.Hao) Keng - Gansu, Qinghai * '' Orinus ...

'' *'' Oropetium'' *''

Ortachne ''Ortachne'' is a genus of Latin American plants in the grass family. ; SpeciesZuloaga, F. O., E. G. Nicora, Z. E. Rúgolo de Agrasar, O. Morrone, J. F. Pensiero & A. M. Cialdella. 1994. Catálogo de la familia Poaceae en la República Argentin ...

'' *'' Orthoclada'' *''

Oryza ''Oryza'' is a genus of plants in the grass family. It includes the major food crop rice (species ''Oryza sativa'' and ''Oryza glaberrima''). Members of the genus grow as tall, wetland grasses, growing to tall; the genus includes both annual an ...

'' *'' Oryzidium'' *''

Oryzopsis ''Oryzopsis'' is a genus of Chinese and North American plants in the grass family. Species from this genus are commonly called ricegrass.Otachyrium'' *'' Otatea'' *'' Ottochloa'' *'' Oxychloris'' *'' Oxyrhachis'' *'' Oxytenanthera'' *''

Panicum ''Panicum'' (panicgrass) is a large genus of about 450 species of grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, annual or perennial grasses, growi ...

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Pappophorum ''Pappophorum'' is a genus of plants in the grass family, native to the Western Hemisphere. Members of the genus are commonly known as pappusgrass. ; SpeciesDavidse, G. 1994. 73. ''Pappophorum'' Schreber. 6: 257. In G. Davidse, M. Sousa Sánche ...

'' *'' Parafestuca'' *''

Parahyparrhenia ''Parahyparrhenia'' is a genus of Afro-Asian plants in the grass family. ; Species * '' Parahyparrhenia annua'' (Hack.) Clayton - Sahara + Sahel regions of Africa * '' Parahyparrhenia bellariensis'' (Hack.) Clayton - Andhra PradeshLandge, S ...

'' *'' Paraneurachne'' *''

Parapholis ''Parapholis'' is a genus of Eurasian and North African plants in the Poaceae, grass family. Species *''Parapholis filiformis'' (Roth) C.E.Hubb. - from Madeira to Turkey *''Parapholis gracilis'' Bor - Caucasus, Iraq, Iran, Jordan, and Israel. * ...

'' *'' Paratheria'' *'' Parectenium'' *''

Pariana ''Pariana'' is a genus of tropical American plants in the grass family Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bambo ...

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Parodiolyra ''Parodiolyra'' is a genus of Neotropical plants in the grass family. ;Species # '' Parodiolyra aratitiyopensis'' J.R.Grande - Venezuela ( Amazonas) # '' Parodiolyra colombiensis'' Davidse & Zuloaga - Colombia ( Caquetá) # ''Parodiolyra lateral ...

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Pascopyrum ''Pascopyrum'' is a monotypic genus of grass containing the sole species ''Pascopyrum smithii'', which is known by the common names western wheatgrass and red-joint wheatgrass, after the red coloration of the nodes. It is native to North America. ...

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Paspalidium ''Paspalidium'' (watercrown grass) is a genus of tropical and subtropical plants in the grass family. ''Paspalidium'' includes about 40 species native to tropical and subtropical regions of Asia, Africa, Australia, and the Americas Th ...

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Paspalum ''Paspalum'' is a genus of plants in the grass family. The group is widespread across much of Asia, Africa, Australia, and the Americas. Commonly known as paspalum, bahiagrasses, crowngrasses or dallis grasses, many of the species are tall pere ...

'' *'' Patzkea'' *'' Pennisetum'' *''

Pentameris ''Pentameris'' is a genus of plants in the grass family, native primarily to Africa, with a few species in Yemen and on certain islands in the Indian Ocean. A significant number of species are endemic to South Africa.Linder, Hans Peter, et al. ...

'' *'' Pentapogon'' *'' Pentarrhaphis'' *''

Pentaschistis ''Pentaschistis'' is a genus of grass in the family Poaceae. It includes the following species: * ''Pentaschistis chrysurus'' * ''Pentaschistis dolichochaeta'' * ''Pentaschistis mannii ''Pentaschistis mannii'' is a species of grass in the fa ...

'' *'' Pereilema'' *''

Periballia ''Periballia'' is a genus of Mediterranean plants in the grass family. ; Species * '' Periballia involucrata'' (Cav.) Janka - Spain, Portugal * '' Periballia laevis'' (Brot.) Asch. & Graebn. - Spain, Portugal, Morocco, Crimea; naturalized in pa ...

'' *'' Peridictyon'' *'' Perotis'' *'' Perrierbambus'' *'' Perulifera'' *''

Peyritschia ''Peyritschia'' is a genus of Latin American plants in the grass family. ; Species * '' Peyritschia conferta'' (Pilg.) Finot - Venezuela, Ecuador * '' Peyritschia deyeuxioides'' (Kunth) Finot - Mexico, Central America, Colombia, Venezuela, Ecuad ...

'' *'' Phacelurus'' *'' Phaenanthoecium'' *'' Phaenosperma'' *''

Phalaris Phalaris ( el, Φάλαρις) was the tyrant of Akragas (now Agrigento) in Sicily, from approximately 570 to 554 BC. History Phalaris was renowned for his excessive cruelty. Among his alleged atrocities is cannibalism: he was said to have e ...

'' *'' Pharus'' *''

Pheidochloa ''Pheidochloa'' is a genus of Australian and Papuasian plants in the grass family. ;Species *'' Pheidochloa gracilis'' S.T.Blake - New Guinea, Queensland, Northern Territory, Western Australia *'' Pheidochloa vulpioides'' Veldkamp - New Guine ...

'' *'' Phippsia'' *''

Phleum ''Phleum'' (timothy) is a genus of annual and perennial plants in the grass family. The genus is native to Europe, Asia and north Africa, with one species (''P. alpinum'') also in North and South America. They are tufted grasses growing to 20� ...

'' *'' Pholiurus'' *''

Phragmites ''Phragmites'' () is a genus of four species of large perennial reed grasses found in wetlands throughout temperate and tropical regions of the world. Taxonomy The World Checklist of Selected Plant Families, maintained by Kew Garden in L ...

'' *'' Phyllorachis'' *''

Phyllostachys ''Phyllostachys'' () is a genus of Asian bamboo in the grass family. Many of the species are found in central and southern China, with a few species in northern Indochina and in the Himalayas. Some of the species have become naturalized in parts ...

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Pilgerochloa ''Ventenata'' is a genus of plants in the grass family, native to Europe, North Africa, and central + southwest Asia. One species, ''Ventenata dubia'', is considered an invasive weed in many places. ; Species * '' Ventenata blanchei'' Boiss. - L ...

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Piptatherum ''Piptatherum'' is a genus of plants in the grass family known as ricegrass. They are widely distributed across much of Eurasia, North Africa, and North America. These are clumping perennial grasses with long, tapering leaf blades. ; Species ...

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Piptochaetium ''Piptochaetium'', or speargrass, is a genus of plants in the grass family, native to North and South America. ''Piptochaetium'' is a bunchgrass genus in the tribe Stipeae.Clayton, W. D., et al. (2006 onwards)''Piptochaetium''.GrassBase - The Onl ...

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Piptophyllum ''Piptophyllum'' is a genus of plants in the grass family. The only known species is ''Piptophyllum welwitschii'', native to Angola , national_anthem = " Angola Avante"() , image_map = , map_caption = ...

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Piresia ''Piresia'' is a genus of South American plants in the grass family. ;Species # '' Piresia goeldii'' Swallen - French Guiana, Suriname, Venezuela ( Amazonas), Colombia ( Amazonas), Ecuador, Peru ( Loreto), Brazil (Pará, Amazonas, Rondônia) # ...

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Piresiella ''Piresiella'' is a genus of Cuban bamboo in the grass family.Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies. Smithsonian Contributions to Botany 98: 1-1192. The only known species is ''Piresiella streph ...

'' *'' Plagiantha'' *'' Plagiosetum'' *'' Planichloa'' *'' Plectrachne'' *'' Pleiadelphia'' *''

Pleioblastus ''Pleioblastus'' is an East Asian genus of monopodial bamboos in the grass family Poaceae. They are native to China and Japan, and naturalized in scattered places in Korea, Europe, New Zealand, and the Western Hemisphere. The plant spreads by vi ...

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Pleuropogon ''Pleuropogon'' is a genus of Arctic and North American plants in the grass family known generally as semaphore grass. ''Pleuropogon'' native primarily to North America, with one species extending into Arctic Eurasia. These are erect grasses wit ...

'' *'' Plinthanthesis'' *'' Poa'' *'' Pobeguinea'' *'' Podophorus'' *'' Poecilostachys'' *'' Pogonachne'' *'' Pogonarthria'' *''

Pogonatherum ''Pogonatherum'' is a genus of Asian and oceanic island plants in the grass family. ; Species * '' Pogonatherum biaristatum'' S.L.Chen & G.Y.Sheng - Hainan * '' Pogonatherum crinitum'' (Thunb.) Kunth - Indian Subcontinent, China, Japan, south ...

'' *'' Pogoneura'' *''

Pogonochloa ''Pogonochloa'' is a genus of plants in the grass family. The only known species is ''Pogonochloa greenwayi'', native to Zambia and Zimbabwe Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeas ...

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Pohlidium ''Pohlidium'' is a genus of Panamanian plants in the grass family. The only known species is ''Pohlidium petiolatum'', native to Coclé Province Coclé () is a province of central Panama on the nation's southern coast. The administrative capit ...

'' *'' Poidium'' *'' Polevansia'' *'' Polliniopsis'' *''

Polypogon ''Polypogon'' is a nearly cosmopolitan genus of plants in the grass family, commonly known beard grass or rabbitsfoot grass. Description ''Polypogon'' species vary in appearance; some are erect, while others drape over the ground in waves. ...

'' *'' Polytoca'' *''

Polytrias ''Polytrias'' is a genus of Asian, African, and Pacific Island plants in the grass family, commonly called Java grass Batiki bluegrass, Indian murainagrass, or toto grass. The only known species is ''Polytrias indica'', native to West Africa (f ...

'' *'' Pommereulla'' *''

Porteresia ''Porteresia coarctata'' is a species of grass in the family Poaceae, native to India, Sri Lanka, Bangladesh, and Myanmar. ''Porteresia coarctata'' is considered by some botanists to be the only species in the genus ''Porteresia''. Other autho ...

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Potamophila ''Potamophila'' is a genus of Australian plants in the grass family. The only known species is ''Potamophila parviflora''.Ge, S., et al. (2002)A phylogeny of the rice tribe Oryzeae (Poaceae) based on matK sequence data.''American Journal of B ...

'' *'' Pringleochloa'' *'' Prionanthium'' *'' Prosphytochloa'' *'' Psammagrostis'' *''

Psammochloa ''Psammochloa'' is a plant genus in the Poaceae, grass family. The only known species is ''Psammochloa villosa''. Distribution ''Psammochloa villosa'' is native to Mongolia and China (Gansu, Inner Mongolia, Ningxia, Qinghai, Shaanxi, Xinjiang).G ...

'' *'' Psathyrostachys'' *'' Pseudanthistiria'' *'' Pseudarrhenatherum'' *'' Pseudechinolaena'' *'' Pseudobromus'' *'' Pseudochaetochloa'' *'' Pseudocoix'' *'' Pseudodanthonia'' *'' Pseudodichanthium'' *'' Pseudopentameris'' *'' Pseudophleum'' *''

Pseudopogonatherum ''Pseudopogonatherum'' is a genus of Asian and Australian plants in the grass family . ; Species * ''Pseudopogonatherum contortum'' (Brongn.) A.Camus - China, Indian Subcontinent, Southeast Asia * ''Pseudopogonatherum filifolium'' (S.L.Chen) H.Y ...

'' *'' Pseudoraphis'' *''

Pseudoroegneria ''Elymus'' is a genus of perennial plants with approximately 150 species in the grass family, related to rye, wheat, and other widely grown cereal grains. ''Elymus'' is a cosmopolitan genus, represented by species across all continents of the ...

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Pseudosasa ''Pseudosasa'' is a genus of East Asian bamboo in the grass family. These species are small to medium running plants, usually with one branch at a node. Its name comes from its resemblance to the genus '' Sasa''. The species are native to China, ...

'' *'' Pseudosorghum'' *''

Pseudostachyum ''Pseudostachyum polymorphum'' is a monotypic Asian species of bamboo in the Poaceae, grass family.Pseudovossia'' *'' Pseudoxytenanthera'' *''

Pseudozoysia ''Pseudozoysia'' is a monotypic genus of plant in the grass family. The only known species is ''Pseudozoysia sessilis'', found only in Somalia Somalia, , Osmanya script: 𐒈𐒝𐒑𐒛𐒐𐒘𐒕𐒖; ar, الصومال, aṣ-Ṣū ...

'' *'' Psilathera'' *'' Psilolemma'' *'' Psilurus'' *'' Pterochloris'' *''

Ptilagrostis ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Puccinellia ''Puccinellia'' is a genus of plants in the grass family, known as alkali grass or salt grass. These grasses grow in wet environments, often in saline or alkaline conditions. They are native to temperate to Arctic regions of the Northern and S ...

'' *'' Puelia'' *''

Racemobambos ''Racemobambos'' is a genus of bamboo (tribe Bambuseae within the Poaceae) and the sole genus of its subtribe, the Racemobambodinae. The genus is native to Indonesia, Malaysia, and Papuasia Papuasia is a Level 2 botanical region defined in ...

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Raddia ''Raddia'' is a genus of South American plants in the Poaceae, grass family, most of the species found only in Brazil. The genus was named for Italian botanist and herpetologist Giuseppe Raddi, 1770–1829. ;SpeciesHokche, O., P. E. Berry & O. ...

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Raddiella ''Raddiella'' is a genus of Neotropical plants in the grass family native to South America, Panama and Trinidad. ;Species # '' Raddiella esenbeckii'' (Steud.) C.E.Calderón ex Soderstr. - Brazil, Bolivia, Colombia, Venezuela, French Guiana, Suri ...

'' *'' Ratzeburgia'' *''

Redfieldia ''Redfieldia'', known as blowout grass, is a monotypic genus in the grass family (Poaceae). The sole species, ''Redfieldia flexuosa'', is native to sandhills in the western and central United States. The plants grow in small clusters, protecting ...

'' *'' Reederochloa'' *''

Rehia ''Rehia'' is a genus of plants in the grass family. The only known species is ''Rehia nervata'', native to Brazil ( Amapá, Pará, Maranhão) and to the Guianas ( Suriname, Guyana, French Guiana French Guiana ( or ; french: link=no, Guy ...

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Reimarochloa ''Reimarochloa'' is a genus of New World plants in the Poaceae, grass family, native to North America, North and South America including the Greater Antilles.Reitzia ''Reitzia'' is a genus of plants in the grass family. The only known species is ''Reitzia smithii'', native to southeastern Brazil ( Santa Catarina, São Paulo, Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply ...

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Relchela ''Relchela'' is a genus of plants in the grass family. The only known species is ''Relchela panicoides'', native to Chile and Argentina (Neuquén, Río Negro, Chubut, Neuquén Neuquén (; arn, Nehuenken) is the capital city of the Argent ...

'' *'' Rendlia'' *'' Renvoizea'' *'' Reynaudia'' *''

Rhipidocladum ''Rhipidocladum'' is a genus of New World woody bamboo in the grass family). It found in Mesoamerica, Trinidad, and South America. The genus is characterized by 1) erect, non-pseudopetiolate culm leaves, 2) numerous branchlets arising in an aspid ...

'' *'' Rhizocephalus'' *'' Rhomboelytrum'' *'' Rhynchelytrum'' *''

Rhynchoryza ''Rhynchoryza'' is a genus of plants in the grass family.Rosengurtt, B., B. R. A. Maffei & P. I. Artucio. 1970. Gramíneas Uruguayas –vii 1–489. Universidad de la República, Montevideo The only known species is ''Rhynchoryza subulata'', nat ...

'' *'' Rhytachne'' *'' Richardsiella'' *'' Robynsiochloa'' *'' Rottboellia'' *''

Rytidosperma ''Rytidosperma'' is a genus of plants in the grass family. Most of the species occur in Australasia, with a few in insular Southeast Asia, southern South America (Chile + Argentina), and certain islands of the Pacific (Hawaii + Easter Island).

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Saccharum ''Saccharum'' is a genus of tall perennial plants of the broomsedge tribe within the grass family. The genus is widespread across tropical, subtropical, and warm temperate regions in Africa, Eurasia, Australia, the Americas, and assorted oceani ...

'' *'' Sacciolepis'' *''

Sartidia ''Sartidia'' is a genus of Southern African and Madagascan plants in the grass family. It was split from '' Aristida'' in 1963 by South African botanist Bernard de Winter and contains six known species, of which '' Sartidia perrieri'' is conside ...

'' *'' Sasa'' *'' Sasaella'' *''

Sasamorpha ''Sasamorpha'' is a genus of East Asian bamboo in the grass family.Miyabe, Kingo. 1930. Flora of Hokkaido and Saghalien, 2: 180, Journal of the Faculty of Agriculture, Hokkaido Imperial University, Sapporo, v. 26, pt. 1–4 ;Species # '' Sasamo ...

'' *''

Saugetia ''Saugetia'' is a genus of West Indian plants in the grass family. Species Species include:Catasus Guerra, L. 1997. Las gramíneas (Poaceae) de Cuba, I. Fontqueria 46: –ii 1–259. * '' Saugetia fasciculata'' Hitchc. & Chase — Cuba, Hispani ...

'' *'' Schaffnerella'' *'' Schedonnardus'' *''

Schenckochloa ''Schenckochloa'' is a monotypic genus of flowering plants belonging to the family Poaceae. It only contains one known species, ''Schenckochloa barbata'' Its native range is north-eastern Brazil. The genus name of ''Schenckochloa'' is in hono ...

'' *'' Schismus'' *''

Schizachne ''Schizachne'' is a genus of Eurasian and North American plants in the grass family.Schizachyrium'' *'' Schizostachyum'' *'' Schmidtia'' *'' Schoenefeldia'' *'' Sclerachne'' *''

Sclerochloa ''Sclerochloa'' is a genus of Eurasian and North African plants in the grass family. Hardgrass is a common name for plants in this genus. Species *'' Sclerochloa dura'' (L.) P.Beauv. - Europe, Asia, and North Africa from Spain + Morocco to Paki ...

'' *'' Sclerodactylon'' *'' Scleropogon'' *'' Sclerostachya'' *''

Scolochloa ''Scolochloa'' is a genus of grasses in the family Poaceae / Gramineae, now containing a single species, ''Scolochloa festucacea''. Common rivergrass is a common name for the species. ''Scolochloa festucacea'' grows in Europe, temperate Asia, an ...

'' *'' Scribneria'' *'' Scrotochloa'' *'' Scutachne'' *'' Secale'' *''

Sehima ''Sehima'' is a genus of mostly Asian and African plants in the grass family.Semiarundinaria ''Semiarundinaria'' is a genus of East Asian bamboo in the grass family. ''Semiarundinaria'' is native to temperate and subtropical woodland in China and Japan. The plants are generally rhizomatous, tall and erect bamboos with cylindrical st ...

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Sesleria ''Sesleria'' is a genus of perennial plants in the grass family. The are native to Eurasia and North Africa. They are found in Albania, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Corsica, Czechoslovakia, East Aegean Islands, Fi ...

'' *'' Sesleriella'' *''

Setaria ''Setaria'' is a widespread genus of plants in the grass family. The name is derived from the Latin word ''seta'', meaning "bristle" or "hair", which refers to the bristly spikelets. The genus includes over 100 species distributed in many t ...

'' *'' Setariopsis'' *''

Shibataea ''Shibataea'' is a genus of Chinese bamboos in the grass family. They are unique shorter bamboos with dark green leaves. This genus is more closely related to the genus ''Phyllostachys'' than other small bamboos. Excellent as tall groundcover ...

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Silentvalleya ''Silentvalleya'' is a genus of Indian plants in the grass family. ; Species * '' Silentvalleya chandwadensis'' Gosavi, B.R. Pawar & S.R. Yadav - near Chandwad in Maharashtra * '' Silentvalleya nairii'' V.J.Nair, Sreek., Vajr. & Bhargavan - L ...

'' *'' Simplicia'' *'' Sinarundinaria'' *'' Sinobambusa'' *'' Sinochasea'' *'' Sitanion'' *'' Snowdenia'' *'' Soderstromia'' *'' Soejatmia'' *'' Sohnsia'' *''

Sorghastrum ''Sorghastrum'' is a genus of grasses, native to Africa and the Americas. Members of the genus are commonly known as Indiangrass. ; Selected * '' Sorghastrum balansae'' (Hack.) Dávila - Paraguay * '' Sorghastrum brunneum'' Swallen - Mexico, Gu ...

'' *'' Sorghum'' *''

Spartina ''Spartina'' is a taxon of plants in the grass family, frequently found in coastal salt marshes. Its species are commonly known as cordgrass or cord-grass, and are native to the coasts of the Atlantic Ocean in western and southern Europe, nort ...

'' *'' Spartochloa'' *''

Spathia ''Spathia'' is a genus of plants in the grass family. The only known species is ''Spathia neurosa'', native to northern Australia (Queensland, Northern Territory, and Western Australia Western Australia (commonly abbreviated as WA) is a sta ...

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Sphaerobambos ''Sphaerobambos'' is a genus of Southeast Asian bamboo, in the grass family. ;Species # '' Sphaerobambos hirsuta'' S.Dransf. - Sabah # '' Sphaerobambos philippinensis'' (Gamble) S.Dransf. - Mindanao # '' Sphaerobambos subtilis'' S.Dransf. - ...

'' *'' Sphaerocaryum'' *'' Spheneria'' *'' Sphenopholis'' *'' Sphenopus'' *'' Spinifex'' *''

Spodiopogon ''Spodiopogon'' is a genus of Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-E ...

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Sporobolus ''Sporobolus'' is a nearly cosmopolitan genus of plants in the grass family. The name ''Sporobolus'' means "seed-thrower", and is derived from Ancient Greek word (), meaning "seed", and the root of () "to throw", referring to the dispersion of ...

'' *'' Steinchisma'' *'' Steirachne'' *'' Stenotaphrum'' *'' Stephanachne'' *'' Stereochlaena'' *'' Steyermarkochloa'' *'' Stiburus'' *'' Stilpnophleum'' *''

Stipa ''Stipa'' is a genus of around 300 large perennial hermaphroditic grasses collectively known as feather grass, needle grass, and spear grass. They are placed in the subfamily Pooideae and the tribe Stipeae, which also contains many species for ...

'' *'' Stipagrostis'' *'' Streblochaete'' *'' Streptochaeta'' *'' Streptogyna'' *'' Streptolophus'' *'' Streptostachys'' *''

Styppeiochloa ''Styppeiochloa'' is a genus of African plants in the grass family. ; Species * '' Styppeiochloa catherineana'' Cope & Ryves - Angola * ''Styppeiochloa gynoglossa'' (Gooss.) De Winter - Mozambique, Zimbabwe, Eswatini, Cape Province, KwaZulu-Nata ...

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Sucrea ''Sucrea'' is a genus of Brazilian plants in the Poaceae, grass family. ;Species # ''Sucrea maculata'' Soderstr. - Rio de Janeiro (state), Rio de Janeiro, Espírito Santo # ''Sucrea monophylla'' Soderstr. - Bahia # †''Sucrea sampaiana'' (Hitch ...

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Suddia ''Suddia'' is a genus of plants in the grass family. The only known species is ''Suddia sagittifolia'', which is native to South Sudan in central Africa Africa is the world's second-largest and second-most populous continent, after Asi ...

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Swallenia ''Swallenia'' is a rare genus of plants in the grass family, found only in Death Valley National Park, California. The only known species is ''Swallenia alexandrae'', known by the common names Eureka dunegrass and Eureka Valley dune grass. This ...

'' *'' Swallenochloa'' *'' Symplectrodia'' *'' Taeniatherum'' *'' Taeniorhachis'' *'' Tarigidia'' *'' Tatianyx'' *'' Teinostachyum'' *'' Tetrachaete'' *'' Tetrachne'' *'' Tetrapogon'' *'' Tetrarrhena'' *'' Thamnocalamus'' *'' Thaumastochloa'' *'' Thelepogon'' *'' Thellungia'' *''

Themeda ''Themeda'' is a genus of plants in the grass family native to Asia, Africa, Australia, and Papuasia. There are about 18Barkworth, M. E''Themeda''.Grass Manual. Flora of North America. to 26Potdar, G. G., et al. (2003)A new species of ''Themeda'' ...

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Thinopyrum ''Thinopyrum'' is a genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and be ...

'' *'' Thrasya'' *'' Thrasyopsis'' *''

Thuarea ''Thuarea'' is a genus of plants in the grass family, native to Asia, Africa, Australia, and various islands of the Indian and Pacific Oceans.