Cyperus flavescens

Cyperus flavescens
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Cyperaceae
Genus:	Cyperus
Species:	C. flavescens
Binomial name
	Cyperus flavescens; L.
Synonyms
	Homotypic synonyms Chlorocyperus flavescens (L.) Rikli ; Distimus flavescens (L.) Raf. ; Pycreus flavescens (L.) P.Beauv. ex Rchb. ; ; Heterotypic synonyms Chlorocyperus abyssinicus (Hochst. ex A.Rich.) Rikli ; Chlorocyperus intermedius Rikli ; Cyperus abyssinicus Hochst. ex A.Rich. ; Cyperus durandii Boeckeler ; Cyperus eragrostis C.Krauss ; Cyperus fallaciosus (Cherm.) Raymond ; Cyperus flavens Pall. ; Cyperus flavescens var. abyssinicus (Hochst. ex A.Rich.) C.B.Clarke ; Cyperus flavescens f. abyssinicus (Hochst. ex A.Rich.) Kük. ; Cyperus flavescens var. castaneus (Lye) Lye ; Cyperus flavescens f. caucasicus K.Koch ; Cyperus flavescens f. compactus Asch. & Graebn. ; Cyperus flavescens subsp. fallaciosus (Cherm.) Lye ; Cyperus flavescens f. fontanesii (Kunth) Kük. ; Cyperus flavescens var. fontanesii (Kunth) C.B.Clarke ; Cyperus flavescens f. gracillimus Asch. & Graebn. ; Cyperus flavescens var. gussonei (Gasp. ex Guss.) Nyman ; Cyperus flavescens subsp. intermedius (Rikli) Lye ; Cyperus flavescens f. major Lojac. ; Cyperus flavescens subsp. microglumis (Lye) Lye ; Cyperus flavescens var. minor Gaudin ; Cyperus flavescens subvar. mohrii Farw. ; Cyperus flavescens f. monostachyus Sacc. ; Cyperus flavescens f. paraensis (Nees) Kük. ; Cyperus flavescens var. paraensis (Nees) Boeckeler ; Cyperus flavescens var. piceus (Liebm.) Fernald ; Cyperus flavescens var. poiformis (Pursh) Fernald ; Cyperus flavescens var. pygmaeus Goiran ; Cyperus flavescens var. rehmannianus (C.B.Clarke) Kük. ; (incomplete list);

Cyperus flavescens, commonly known as the yellow flatsedge, is a species of flowering plant belonging to the family Cyperaceae.

Taxonomy

Cyperus flavescens was first described by the Swedish botanist Carl Linnaeus in 1753. Linnaeus based his diagnosis on specimens collected in marshes in Germany, Switzerland, and France ("habitat in Germaniae, Helvetiae, Galliae paludosis").

Distribution and habitat

Cyperus flavescens has a cosmopolitan distribution. It is native to North America, South America, Europe, Asia, and Africa. It was introduced to New South Wales and Queensland in Australia. In North America (north of Mexico), it is most common in the eastern United States.

References

↑ Lansdown, R.V. (2018). "Cyperus flavescens". IUCN Red List of Threatened Species. 2018 e.T157979A120157948. doi:10.2305/IUCN.UK.2018-2.RLTS.T157979A120157948.en. Retrieved 24 February 2022.
1 2 "Cyperus flavescens L.". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 26 February 2026.
1 2 "Cyperus flavescens L.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 3 March 2026.
↑ Linnaeus (1753), pp. 46.
↑ Tucker, Gordon C.; Marcks, Brian G.; Carter, J. Richard (2002). "Cyperus flavescens". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 23. New York and Oxford: Oxford University Press. Retrieved 4 March 2026 – via eFloras.org, Missouri Botanical Garden, St. Louis, Missouri and Harvard University Herbaria, Cambridge, Massachusetts.
↑ Kartesz, John T. (2014). "Cyperus flavescens". State-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 3 March 2026.

Bibliography

Linnaeus, Carl (1753). Species Plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas (1st ed.). Stockholm: Impensis Laurentii Salvii. Retrieved 20 October 2025.

External links

Kartesz, John T. (2014). "Cyperus flavescens". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 3 March 2026.
"Cyperus flavescens — yellow flatsedge". Go Botany. Native Plant Trust. Retrieved 4 March 2026.
"Cyperus flavescens Linnaeus". Flora of the Southeastern United States. Retrieved 4 March 2026.
Reznicek, A. A.; Voss, E. G.; Walters, B. S. (February 2011). "Cyperus". Michigan Flora Online. University of Michigan. Retrieved 4 March 2026.
NatureServe (27 February 2026). "Cyperus flavescens". NatureServe Explorer. Arlington, Virginia. Retrieved 4 March 2026.
"Cyperus flavescens Linnaeus". Database of Vascular Plants of Canada. Retrieved 4 March 2026.
"Cyperus flavescens L.". World Flora Online. Retrieved 4 March 2026.
"Cyperus flavescens". Lady Bird Johnson Wildflower Center. The University of Texas at Austin. Retrieved 4 March 2026.
"Cyperus flavescens". New York Flora Atlas. Retrieved 4 March 2026.
"Cyperus flavescens L.". Digital Atlas of the Virginia Flora. Retrieved 4 March 2026.
"Cyperus flavescens". Indiana Plant Atlas. Retrieved 4 March 2026.

[iucn-1] Lansdown, R.V. (2018). "Cyperus flavescens". IUCN Red List of Threatened Species. 2018 e.T157979A120157948. doi:10.2305/IUCN.UK.2018-2.RLTS.T157979A120157948.en. Retrieved 24 February 2022.

[IPNI:74698-2-2] 1 2 "Cyperus flavescens L.". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 26 February 2026.

[POWO:74698-2-3] 1 2 "Cyperus flavescens L.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 3 March 2026.

[FOOTNOTELinnaeus1753[httpswwwbiodiversitylibraryorgpage358065page58mode1up_pp.&nbsp;46]-4] Linnaeus (1753), pp. 46.

[FNA:242357663-5] Tucker, Gordon C.; Marcks, Brian G.; Carter, J. Richard (2002). "Cyperus flavescens". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 23. New York and Oxford: Oxford University Press. Retrieved 4 March 2026 – via eFloras.org, Missouri Botanical Garden, St. Louis, Missouri and Harvard University Herbaria, Cambridge, Massachusetts.

[BONAP-state-6] Kartesz, John T. (2014). "Cyperus flavescens". State-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 3 March 2026.

Cyperus flavescens

Conservation status
Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Cyperaceae
Genus:	Cyperus
Species:	C. flavescens
Binomial name
*Cyperus flavescens* L.
Synonyms
Homotypic synonyms Chlorocyperus flavescens (L.) Rikli Distimus flavescens (L.) Raf. Pycreus flavescens (L.) P.Beauv. ex Rchb. Heterotypic synonyms Chlorocyperus abyssinicus (Hochst. ex A.Rich.) Rikli Chlorocyperus intermedius Rikli Cyperus abyssinicus Hochst. ex A.Rich. Cyperus durandii Boeckeler Cyperus eragrostis C.Krauss Cyperus fallaciosus (Cherm.) Raymond Cyperus flavens Pall. Cyperus flavescens var. abyssinicus (Hochst. ex A.Rich.) C.B.Clarke Cyperus flavescens f. abyssinicus (Hochst. ex A.Rich.) Kük. Cyperus flavescens var. castaneus (Lye) Lye Cyperus flavescens f. caucasicus K.Koch Cyperus flavescens f. compactus Asch. & Graebn. Cyperus flavescens subsp. fallaciosus (Cherm.) Lye Cyperus flavescens f. fontanesii (Kunth) Kük. Cyperus flavescens var. fontanesii (Kunth) C.B.Clarke Cyperus flavescens f. gracillimus Asch. & Graebn. Cyperus flavescens var. gussonei (Gasp. ex Guss.) Nyman Cyperus flavescens subsp. intermedius (Rikli) Lye Cyperus flavescens f. major Lojac. Cyperus flavescens subsp. microglumis (Lye) Lye Cyperus flavescens var. minor Gaudin Cyperus flavescens subvar. mohrii Farw. Cyperus flavescens f. monostachyus Sacc. Cyperus flavescens f. paraensis (Nees) Kük. Cyperus flavescens var. paraensis (Nees) Boeckeler Cyperus flavescens var. piceus (Liebm.) Fernald Cyperus flavescens var. poiformis (Pursh) Fernald Cyperus flavescens var. pygmaeus Goiran Cyperus flavescens var. rehmannianus (C.B.Clarke) Kük. (incomplete list)