''Tridens'' is a genus of perennial

grass 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 grasses of natural grassland and species cultivated in lawns an ...

es 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 the grasses of natural grassland and species cultivated in lawns an ...

native to the

Americas The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with th ...

.Tropicos, ''Tridens'' Roem. & Schult.
/ref> ; Species * '' Tridens albescens'' (Vasey) Wooton & Standl. - southwest + south-central USA ( AZ NM TX LA AR OK KS), Mexico ( Chihuahua,

Durango Durango (), officially named Estado Libre y Soberano de Durango ( en, Free and Sovereign State of Durango; Tepehuán: ''Korian''; Nahuatl: ''Tepēhuahcān''), is one of the 31 states which make up the 32 Federal Entities of Mexico, situated in ...

Coahuila Coahuila (), formally Coahuila de Zaragoza (), officially the Free and Sovereign State of Coahuila de Zaragoza ( es, Estado Libre y Soberano de Coahuila de Zaragoza), is one of the 32 states of Mexico. Coahuila borders the Mexican states of N ...

Tamaulipas Tamaulipas (), officially the Free and Sovereign State of Tamaulipas ( es, Estado Libre y Soberano de Tamaulipas), is a state in the northeast region of Mexico; one of the 31 states which, along with Mexico City, comprise the 32 Federal Entiti ...

Nuevo León Nuevo León () is a state in the northeast region of Mexico. The state was named after the New Kingdom of León, an administrative territory from the Viceroyalty of New Spain, itself was named after the historic Spanish Kingdom of León. With a ...

) * '' Tridens ambiguus'' (Elliott) Schult. – pine barren fluffgrass - southeastern USA ( TX LA MS AL GA FL SC NC) * ''

Tridens brasiliensis ''Tridens'' is the scientific name for several genera of organisms and may refer to: * ''Tridens'' (fish), a genus of catfish in the family Trichomycteridae, containing the single species ''Tridens melanops'' * ''Tridens'' (fungus) , a genus o ...

'' (Nees ex Steud.) Parodi -

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ...

Uruguay Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

* '' Tridens buckleyanus'' (Vasey ex L.H.Dewey) Nash -

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

* '' Tridens carolinianus'' (Steud.) Henrard - southeastern USA ( LA MS AL GA FL SC NC) * '' Tridens congestus'' (L.H.Dewey) Nash – pink fluffgrass USA ( AZ TX) * '' Tridens eragrostoides'' (Vasey & Scribn.) Nash – lovegrass tridens - southern USA ( TX AZ NM AL FL),

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

* '' Tridens flaccidus'' (Döll) Parodi -

Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the ...

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

* ''

Tridens flavus ''Tridens flavus'', the purpletop tridens, red top, or greasegrass, is a large, robust perennial bunchgrass native to eastern North America. It widespread throughout its range and is most often found in man-made habitats, such as hay meadows an ...

'' (L.) Hitchc. – purpletop -

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

, eastern + central USA,

* '' Tridens hackelii'' (Arechav.) Parodi -

* '' Tridens muticus'' (Torr.) Nash – slim tridens - southwestern + south-central USA ( CA NV AZ UT CO NM TX OK KS MO AR LA), Mexico (

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...

, Chihuahua,

Zacatecas , image_map = Zacatecas in Mexico (location map scheme).svg , map_caption = State of Zacatecas within Mexico , coordinates = , coor_pinpoint = , coordinates_footnotes = , subdivision_type ...

Querétaro Querétaro (), officially the Free and Sovereign State of Querétaro ( es, Estado Libre y Soberano de Querétaro, links=no; Otomi language, Otomi: ''Hyodi Ndämxei''), is one of the Political divisions of Mexico, 32 federal entities of Mexico. I ...

San Luis Potosí San Luis Potosí (), officially the Free and Sovereign State of San Luis Potosí ( es, Estado Libre y Soberano de San Luis Potosí), is one of the 32 states which compose the Federal Entities of Mexico. It is divided in 58 municipalities and i ...

) * '' Tridens nicorae'' Anton - northern

* '' Tridens × oklahomensis'' (Feath.) Feath. -

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

(hybrid ''T. flavus × T. strictus)'' * '' Tridens riograndensis'' Acedo & LlamasAcedo, C. and F. Llamas. (2003). A new species of ''Tridens'' (Poaceae) from Brazil. ''Systematic Botany'' 28:2 313-16. -

Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative_units_of_Brazil#List, fifth-most-populous state and the List of Brazilian st ...

* '' Tridens strictus'' (Nutt.) Nash – longspike tridens - southeastern + south-central USA (from TX to FL to IL + PA) * '' Tridens texanus'' (S. Watson) Nash - USA ( TX NM), Mexico ( Chihuahua,

) ; Formerly included

References

External links

Jepson Manual: ''Tridens''

USDA Plants Profile
Chloridoideae Grasses of North America Grasses of South America Grasses of Argentina Grasses of Brazil Grasses of Mexico Grasses of the United States Poaceae genera Taxa named by Palisot de Beauvois {{Chloridoideae-stub