''Piptochaetium'', or speargrass, is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of plants in the

grass family Poaceae ( ), also called Gramineae ( ), is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos, the grasses of natural grassland and species cultivated in ...

, native to North and South America. ''Piptochaetium'' is a

bunchgrass Tussock grasses or bunch grasses are a group of grass species in the family Poaceae. They usually grow as singular plants in clumps, tufts, hummocks, or bunches, rather than forming a sod or lawn, in meadows, grasslands, and prairies. As perennia ...

genus in the tribe

Stipeae The Stipeae are a tribe of grasses within the subfamily Pooidae, with up to 600 described species. Description The defining morphological features of the Stipeae include single-flowered spikelets lacking a rachilla extension, and the lemmas ( ...

.Clayton, W. D., et al. (2006 onwards)
''Piptochaetium''.
GrassBase - The Online World Grass Flora. Some of its species have been included in the genus ''

Stipa ''Stipa'' is a genus of 141 species of large Perennial plant, perennial hermaphrodite, hermaphroditic grasses collectively known as feather grass, needle grass, and spear grass. They are placed in the subfamily Pooideae and the tribe Stipeae, w ...

'' by some authors. ; Species''Piptochaetium'', North American species.
USDA PLANTS Profile.''Piptochaetium''.
Germplasm Resources Information Network.Gould, F. W. & R. Moran. 1981. The grasses of Baja California, Mexico. Memoir San Diego Society of Natural History 12: 1–140 * '' Piptochaetium alpinum'' - Santa Catarina,

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 s ...

* '' Piptochaetium angolense'' -

Coquimbo Coquimbo is a port List of cities in Chile, city, Communes of Chile, commune and capital of the Elqui Province, located on the Pan-American Highway, in the Coquimbo Region of Chile. Coquimbo is situated in a valley south of La Serena, Chile, La S ...

* ''Piptochaetium angustifolium'' - Coahuila, Tamaulipas, Nuevo León, México State * ''Piptochaetium avenaceum'' — black oatgrass, blackseed needlegrass - United States (Texas to Florida north to Massachusetts + Michigan), Ontario, Tamaulipas, Nuevo León * ''Piptochaetium avenacioides'' - Florida speargrass - Florida * ''Piptochaetium bicolor'' - Rio Grande do Sul, Argentina, Uruguay, Chile incl Juan Fernández Islands * ''Piptochaetium brachyspermum'' - Buenos Aires Province, Buenos Aires * ''Piptochaetium brevicalyx'' - central + eastern Mexico * ''Piptochaetium burkartianum'' - Corrientes Province, Corrientes * ''Piptochaetium cabrerae'' - Buenos Aires * ''Piptochaetium calvescens'' - Buenos Aires, Uruguay * ''Piptochaetium confusum'' - Uruguay, Rio Grande do Sul, Entre Ríos Province, Entre Rios * ''Piptochaetium cucullatum'' - Uruguay * ''Piptochaetium featherstonei'' - Peru, Bolivia * ''Piptochaetium fimbriatum'' - pinyon ricegrass - Arizona, Texas, New Mexico, Mexico, Guatemala * ''Piptochaetium hackelii'' - Argentina, Uruguay * ''Piptochaetium hirtum'' - Chile * ''Piptochaetium indutum'' - Ecuador, Peru, Bolivia, Salta Province, Salta, Jujuy Province, Jujuy * ''Piptochaetium jubatum'' - Uruguay * ''Piptochaetium lasianthum'' - Uruguay, Argentina, Santa Catarina, Rio Grande do Sul * ''Piptochaetium leiopodum'' - Buenos Aires, Uruguay * ''Piptochaetium medium'' - Uruguay, Argentina, Brazil, Venezuela * ''Piptochaetium montevidense'' - Uruguayan ricegrass - Argentina, Chile, Uruguay, Brazil, Paraguay, Bolivia, Peru, Ecuador, Venezuela * ''Piptochaetium napostaense'' - Argentina * ''Piptochaetium palustre'' - Santa Catarina * ''Piptochaetium panicoides'' - Argentina, Chile, Uruguay, Brazil, Colombia, Bolivia, Peru, Ecuador, Venezuela * ''Piptochaetium pringlei'' - Pringle's speargrass - Arizona, Texas, New Mexico, Mexico * ''Piptochaetium ruprechtianum'' - Uruguay, Argentina, Brazil * ''Piptochaetium sagasteguii'' - Peru * ''Piptochaetium seleri'' - Mexico, Guatemala * ''Piptochaetium setosum'' - bristly speargrass - Chile * ''Piptochaetium stipoides'' - purple speargrass - Argentina, Chile, Uruguay, Brazil, Colombia; naturalized in Mexico, California * ''Piptochaetium tovarii'' - Peru * ''Piptochaetium uruguense'' - Argentina, Uruguay, Santa Catarina, Rio Grande do Sul, Paraguay, San Luis Potosí * ''Piptochaetium virescens '' - Mexico, Guatemala ; formerly included see ''Nassella

References

External links

{{Authority control Stipeae Poaceae genera Bunchgrasses of North America Bunchgrasses of South America Flora of Central America Grasses of Argentina Grasses of Brazil Grasses of Mexico Grasses of the United States