Taxon: Cyperus imbricatus Retz.

Summary

Genus:

Cyperus

Family:

Cyperaceae

Subfamily:

Cyperoideae

Tribe:

Cypereae

Nomen number:

402811

Place of publication:

Observ. bot. 5:12. 1788 ("1789")

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

No images

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
Boulos, L. 1995. Flora of Egypt checklist.
Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45
Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
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.
Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
Haines, R. W. & K. A. Lye. 1983. Sedges and rushes of East Africa
Hara, H. et al. 1978-1982. An enumeration of the flowering plants of Nepal.
Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000
Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75
Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2.
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).
Rechinger, K. H., ed. 1963-. Flora iranica.
Steenis, C. G. G. J. van, ed. 1948-. Flora malesiana.
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. 43:111.
Verloove, F. 2005. New records of interesting xenophytes in Spain. Lazaroa 26:141-148.
Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).

Common names

Language	Name	Alternate name	note	seq	Citation
English	shingle 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	Reference
1	Native	Africa	East Tropical Africa	Tanzania		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	East Tropical Africa	Uganda		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Northeast Tropical Africa	Chad		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Northeast Tropical Africa	Ethiopia		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Northeast Tropical Africa	Sudan		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Northern Africa	Egypt		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Southern Africa	Botswana		Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
1	Native	Africa	Southern Africa	Eswatini		Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
1	Native	Africa	Southern Africa	Namibia		Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
1	Native	Africa	Southern Africa	South Africa	KwaZulu-Natal	Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
1	Native	Africa	Southern Africa	South Africa	Limpopo	Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
1	Native	Africa	West Tropical Africa	Benin		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Burkina Faso		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Côte D'Ivoire		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Ghana		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Guinea		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Liberia		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Mali		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Niger		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Nigeria		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Senegal		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West Tropical Africa	Togo		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West-Central Tropical Africa	Cameroon		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West-Central Tropical Africa	Congo		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West-Central Tropical Africa	Democratic Republic of the Congo		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	West-Central Tropical Africa	Gabon		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Western Indian Ocean	Madagascar		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Africa	Western Indian Ocean	Seychelles		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Temperate	China	China	Guangdong Sheng	Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	Eastern Asia	Taiwan		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	Western Asia	Afghanistan		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Temperate	Western Asia	Iran		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Indian Subcontinent	Bangladesh		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Indian Subcontinent	India		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Indian Subcontinent	Nepal		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Indo-China	Myanmar		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Indo-China	Thailand		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Indo-China	Vietnam		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Malesia	Indonesia		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Malesia	Malaysia		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Malesia	Philippines		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Asia-Tropical	Papuasia	Papua New Guinea		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Northern America	Southern Mexico	Mexico	Chiapas	Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
1	Native	Northern America	Southern Mexico	Mexico	Colima	Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
1	Native	Northern America	Southern Mexico	Mexico	Guerrero	Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
1	Native	Northern America	Southern Mexico	Mexico	Jalisco	Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
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. 43:111.
1	Native	Northern America	Southern Mexico	Mexico	Nayarit	Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
1	Native	Northern America	Southern Mexico	Mexico	Tabasco	Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
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. 43:111.
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	Dominica		Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
1	Native	Southern America	Caribbean	Dominican Republic		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Caribbean	Grenada		Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
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	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		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	Costa Rica		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	El Salvador		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	Guatemala		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	Honduras		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	Nicaragua		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Central America	Panama		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Northern South America	Guyana		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Northern South America	Venezuela		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
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		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
1	Native	Southern America	Western South America	Peru		Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
3	Adventive	Europe	Middle Europe	Netherlands		Verloove, F. 2005. New records of interesting xenophytes in Spain. Lazaroa 26:141-148.
3	Adventive	Europe	Southeastern Europe	Italy		Verloove, F. 2005. New records of interesting xenophytes in Spain. Lazaroa 26:141-148.
3	Adventive	Europe	Southwestern Europe	Spain		Verloove, F. 2005. New records of interesting xenophytes in Spain. Lazaroa 26:141-148.

Native
Africa

NORTHERN AFRICA: Egypt
NORTHEAST TROPICAL AFRICA: Ethiopia, Sudan, Chad
EAST TROPICAL AFRICA: Tanzania, Uganda
WEST-CENTRAL TROPICAL AFRICA: Cameroon, Democratic Republic of the Congo, Congo, Gabon
WEST TROPICAL AFRICA: Benin, Burkina Faso, Côte D'Ivoire, Ghana, Guinea, Liberia, Mali, Niger, Nigeria, Senegal, Togo
SOUTHERN AFRICA: Botswana, Namibia, Eswatini, South Africa [KwaZulu-Natal, Limpopo]
WESTERN INDIAN OCEAN: Madagascar, Seychelles

Asia-Temperate

WESTERN ASIA: Afghanistan, Iran
CHINA: China [Guangdong Sheng]
EASTERN ASIA: Taiwan

Asia-Tropical

INDIAN SUBCONTINENT: Bangladesh, India, Nepal
PAPUASIA: Papua New Guinea
INDO-CHINA: Myanmar, Thailand, Vietnam
MALESIA: Indonesia, Malaysia, Philippines

Northern America

SOUTHERN MEXICO: Mexico [Chiapas, Colima, Guerrero, Jalisco, Michoacán de Ocampo, Nayarit, Tabasco, Veracruz de Ignacio de la Llave]

Southern America

CARIBBEAN: Cuba, Dominica, Dominican Republic, Grenada, Haiti, Jamaica, Trinidad and Tobago, United States [Puerto Rico]
CENTRAL AMERICA: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, El Salvador
NORTHERN SOUTH AMERICA: Guyana, Venezuela
BRAZIL: Brazil
WESTERN SOUTH AMERICA: Bolivia, Colombia, Ecuador, Peru

Adventive
Europe

MIDDLE EUROPE: Netherlands
SOUTHEASTERN EUROPE: Italy
SOUTHWESTERN EUROPE: Spain

Reference(s)

Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges.
Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:111.
Verloove, F. 2005. New records of interesting xenophytes in Spain. Lazaroa 26:141-148.

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=402811. Accessed 8 October 2026.