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''Chrysopogon aciculatus'' (syn. ''Andropogon aciculatus'') is a species of 
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 ...
native to the tropics of Asia, Polynesia, and Australia at low elevations. Common names include ''amorseco'' (Spanish
Spanish might refer to:
* Items from or related to Spain:
**Spaniards are a nation and ethnic group indigenous to Spain
**Spanish language, spoken in Spain and many Latin American countries
**Spanish cuisine
Other places
* Spanish, Ontario, Cana ...
, "dry love") (not to be confused with the ''amor seco'' tree, ''Alchornea glandulosa
''Alchornea glandulosa'' is a tree species of the Acalyphoideae native to South America, growing in southern Brazil from Minas Gerais to Rio Grande do Sul. It is locally known as ''tamanqueiro'', ''tapiá'' or ''amor seco''. This gnarled tree gro ...
''), lesser spear grass, Mackie's pest, pilipiliula, and ''grama-amorosa'' (Brazilian Portuguese
Brazilian Portuguese (' ), also Portuguese of Brazil (', ) or South American Portuguese (') is the set of varieties of the Portuguese language native to Brazil and the most influential form of Portuguese worldwide. It is spoken by almost all of ...
).
The grass is widely considered an invasive species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...
, but some cultures use it for medicinal purposes.
Its flowering stems are about 20 to 60 centimeters high and its leaves are linear-lanceolate and about 3 to 10 centimeters long by 4 to 6 centimeters wide. The panicle
A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...
s are purplish, open and with few whorled branches and can reach about 5 centimeters long, bearing few-flowered spikes. The sessile spikelet is very narrow, about 3 millimeters long. The callus is elongated and barbed and the fourth glume is linear, acuminate, and awned.
References
{{Taxonbar, from=Q13901550 Panicoideae Flora of tropical Asia Flora of the Pacific Poales of Australia