Taxon: Cyperus aggregatus (Willd.) Endl.

Summary

Genus:

Cyperus

Family:

Cyperaceae

Subfamily:

Cyperoideae

Tribe:

Cypereae

Nomen number:

402849

Place of publication:

Cat. horti Vindob. 1:93. 1842

Verified:

12/10/2009 ARS Systematic Botanists.

Accessions:

0 (0 active, 0 available) in National Plant Germplasm System.

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

Basionym
Mariscus aggregatus Willd.

Heterotypic Synonym(s)
Cyperus cayennensis (Lam.) Britton
Cyperus flavus (Vahl) Nees
Mariscus flavus Vahl

No images

Links

Forestry Images – from www.forestryimages.org

Conservation Status

Reference(s)

Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
Boggan, J. et al. 1997. Checklist of the plants of the Guianas, ed. 2
Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45
CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) Note: four books on weeds worldwide in scope
Davidse, G. et al., eds. 1994. Flora mesoamericana.
FNA Editorial Committee. 1993-. Flora of North America.
Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
Harden, G. J., ed. 1990-1993. Flora of New South Wales.
Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75
Molina G., A. M. 2011. Review of Cyperaceae data for World Economic Plants, ed. 2. pers. comm. via e-mail on 31 Mar.
Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource).
Steyermark, J. A. et al., eds. 1995-. Flora of the Venezuelan Guayana. Note: Missouri Botanical Garden & Timber Press
Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74.

Common names

Language	Name	Alternate name	note	seq	Citation
English	inflated-scale flat sedge			1	Molina G., A. M. 2011. Review of Cyperaceae data for World Economic Plants, ed. 2. pers. comm. via e-mail on 31 Mar.

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Northern Mexico	Mexico	Nuevo León		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Northern Mexico	Mexico	San Luis Potosí		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Northern Mexico	Mexico	Sonora		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Northern Mexico	Mexico	Tamaulipas		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	South-Central U.S.A.	United States	New Mexico		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	South-Central U.S.A.	United States	Texas		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southern Mexico	Mexico	Chiapas		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Guanajuato		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Jalisco		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Michoacán de Ocampo		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Nayarit		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Oaxaca		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Tabasco		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Veracruz de Ignacio de la Llave		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Northern America	Southern Mexico	Mexico	Yucatán		Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
1	Native	Southern America	Brazil	Brazil			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	Cuba			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	Dominican Republic			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	Guadeloupe			Howard, R. 1974-1989. Flora of the lesser Antilles. Note: = Mariscus cayennensis
1	Native	Southern America	Caribbean	Haiti			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	Jamaica			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	Martinique			Howard, R. 1974-1989. Flora of the lesser Antilles. Note: = Mariscus cayennensis
1	Native	Southern America	Caribbean	St. Vincent and Grenadines	Saint Vincent		Howard, R. 1974-1989. Flora of the lesser Antilles. Note: = Mariscus cayennensis
1	Native	Southern America	Caribbean	Trinidad and Tobago			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	United States	Puerto Rico		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	Belize			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	Costa Rica			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	El Salvador			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	Guatemala			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	Honduras			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	Nicaragua			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	Panama			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Northern South America	French Guiana			Boggan, J. et al. 1997. Checklist of the plants of the Guianas, ed. 2
1	Native	Southern America	Northern South America	Guyana			Boggan, J. et al. 1997. Checklist of the plants of the Guianas, ed. 2
1	Native	Southern America	Northern South America	Suriname			Boggan, J. et al. 1997. Checklist of the plants of the Guianas, ed. 2
1	Native	Southern America	Northern South America	Venezuela			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Southern South America	Argentina			Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74.
1	Native	Southern America	Southern South America	Chile		n.	Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Southern South America	Paraguay			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Southern South America	Uruguay			Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74.
1	Native	Southern America	Western South America	Bolivia			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Western South America	Colombia			Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Western South America	Ecuador			Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75
1	Native	Southern America	Western South America	Peru			Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45
4	Naturalized	Australasia	Australia	Australia			Harden, G. J., ed. 1990-1993. Flora of New South Wales.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	New Jersey		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Pennsylvania		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northwestern U.S.A.	United States	Oregon		FNA Editorial Committee. 1993-. Flora of North America.

Native
Northern America

SOUTHEASTERN U.S.A.: United States [Louisiana, Mississippi]
SOUTH-CENTRAL U.S.A.: United States [New Mexico, Texas]
NORTHERN MEXICO: Mexico [Nuevo León, San Luis Potosí, Sonora, Tamaulipas]
SOUTHERN MEXICO: Mexico [Chiapas, Guanajuato, Jalisco, Michoacán de Ocampo, Nayarit, Oaxaca, Tabasco, Veracruz de Ignacio de la Llave, Yucatán]

Southern America

CARIBBEAN: Cuba, Dominican Republic, Guadeloupe, Haiti, Jamaica, Martinique, Trinidad and Tobago, United States [Puerto Rico], St. Vincent and Grenadines [Saint Vincent]
CENTRAL AMERICA: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, El Salvador
NORTHERN SOUTH AMERICA: French Guiana, Guyana, Suriname, Venezuela
BRAZIL: Brazil
WESTERN SOUTH AMERICA: Bolivia, Colombia, Ecuador, Peru
SOUTHERN SOUTH AMERICA: Argentina, Chile (n.), Paraguay, Uruguay

Naturalized
Australasia

AUSTRALIA: Australia

Northern America

NORTHEASTERN U.S.A.: United States [New Jersey, Pennsylvania]
NORTHWESTERN U.S.A.: United States [Oregon]

Reference(s)

Boggan, J. et al. 1997. Checklist of the plants of the Guianas, ed. 2
Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45
Davidse, G. et al., eds. 1994. Flora mesoamericana.
FNA Editorial Committee. 1993-. Flora of North America.
Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
Harden, G. J., ed. 1990-1993. Flora of New South Wales.
Howard, R. 1974-1989. Flora of the lesser Antilles. Note: = Mariscus cayennensis
Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75
Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:156.
Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74.

Economic Uses

Usage	Type	Note	Reference
Weed			CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) Note: four books on weeds worldwide in scope

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=402849. Accessed 10 October 2026.