Cyperus subsquarrosus(Muhl.) Bauters

Small-Flower Halfchaff SedgeSmallflower Halfchaff Sedgesmall-flower halfchaff sedgesmallflower hemicarphasmallflower halfchaff sedge

WFO wfo-0001339779 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 7 observations

This species has been photographed under an open licence only 7 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Cyperus subsquarrosus, photographed by Allan Harris
fig. a Allan Harris, CC0 1.0 / 2003-08-18 / obs. 48822993
Cyperus subsquarrosus, photographed by Rob Foster
fig. b Rob Foster, CC BY 4.0 / obs. 33161021
Cyperus subsquarrosus, photographed by Jay Horn
fig. c Jay Horn, CC BY 4.0 / obs. 168895561
Cyperus subsquarrosus, photographed by Jim Riley
fig. d Jim Riley, CC0 1.0 / obs. 168290106
Cyperus subsquarrosus, photographed by Bonnie Isaac
fig. e Bonnie Isaac, CC0 1.0 / obs. 159278368
Cyperus subsquarrosus, photographed by Jay Horn
fig. f Jay Horn, CC BY 4.0 / obs. 155507414
Cyperus subsquarrosus, photographed by Bryan Connolly
fig. g Bryan Connolly, CC BY 4.0 / obs. 175564846
Cyperus subsquarrosus, photographed by Jay Horn
fig. h Jay Horn, CC BY 4.0 / obs. 168895584

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 80 botanical countries

Regions where Cyperus subsquarrosus is native: Angola, KwaZulu-Natal, Madagascar, Namibia, Northern Provinces, Senegal, Zimbabwe, Alabama, Arizona, British Columbia, California, Connecticut, Florida, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Québec, Rhode I., South Dakota, Tennessee, Texas, Virginia, Wisconsin, Argentina Northeast, Aruba, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil West-Central, Central American Pacific Is., Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Galápagos, Guatemala, Guyana, Honduras, Jamaica, Leeward Is., Netherlands Antilles, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Suriname, Trinidad-Tobago, Uruguay, Venezuela, Venezuelan Antilles, Windward Is. AngolaKwaZulu-NatalMadagascarNamibiaNorthern ProvincesSenegalZimbabweAlabamaArizonaBritish ColumbiaCaliforniaConnecticutFloridaIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestMichiganMinnesotaMissouriNebraskaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaOhioOklahomaOntarioOregonPennsylvaniaQuébecSouth DakotaTennesseeTexasVirginiaWisconsinArgentina NortheastBelizeBoliviaBrazil NorthBrazil NortheastBrazil West-CentralCentral American Pacific Is.ColombiaCosta RicaEcuadorEl SalvadorFrench GuianaGuatemalaGuyanaHondurasJamaicaNicaraguaPanamáParaguayPeruPuerto RicoSurinameTrinidad-TobagoUruguayVenezuela Rhode I.ArubaGalápagosLeeward Is.Netherlands AntillesVenezuelan AntillesWindward Is.
Native distribution of Cyperus subsquarrosus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Arizona ARI
British Columbia BRC
California CAL
Connecticut CNT
Florida FLA
Illinois ILL
Indiana INI
Iowa IOW
Kansas KAN
Kentucky KTY
Louisiana LOU
Maine MAI
Maryland MRY
Massachusetts MAS
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Michigan MIC
Minnesota MIN
Missouri MSO
Nebraska NEB
New Hampshire NWH
New Jersey NWJ
New Mexico NWM
New York NWY
North Carolina NCA
Ohio OHI
Oklahoma OKL
Ontario ONT
Oregon ORE
Pennsylvania PEN
Québec QUE
Rhode I. RHO
South Dakota SDA
Tennessee TEN
Texas TEX
Virginia VRG
Wisconsin WIS
Argentina Northeast AGE SOUTHERN AMERICA
Aruba ARU
Belize BLZ
Bolivia BOL
Brazil North BZN
Brazil Northeast BZE
Brazil West-Central BZC
Central American Pacific Is. CPI
Colombia CLM
Costa Rica COS
Ecuador ECU
El Salvador ELS
French Guiana FRG
Galápagos GAL
Guatemala GUA
Guyana GUY
Honduras HON
Jamaica JAM
Leeward Is. LEE
Netherlands Antilles NLA
Nicaragua NIC
Panamá PAN
Paraguay PAR
Peru PER
Puerto Rico PUE
Suriname SUR
Trinidad-Tobago TRT
Uruguay URU
Venezuela VEN
Venezuelan Antilles VNA
Windward Is. WIN
Angola ANG AFRICA
KwaZulu-Natal NAT
Madagascar MDG
Namibia NAM
Northern Provinces TVL
Senegal SEN
Zimbabwe ZIM

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 21 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Hemicarpha caespitula (Liebm.) Palla
  • Hemicarpha micrantha (Vahl) Britton
  • Hemicarpha micrantha var. humboldtii (Boeckeler) Beetle
  • Hemicarpha micrantha var. minor (Roem. & Schult.) Friedl.
  • Hemicarpha subsquarrosa (Muhl.) Nees
  • Hemicarpha subsquarrosa var. minor (Schrad.) Nees
  • Hypolytrum capillare Schrad. ex Nees
  • Isolepis caespitula Liebm.
  • Isolepis humboldtii Roem. & Schult.
  • Isolepis micrantha (Vahl) Roem. & Schult.
  • Isolepis squarrosa Kunth
  • Isolepis subsquarrosa (Muhl.) Schrad.
  • Isolepis subsquarrosa var. minor Schult.
  • Lipocarpha micrantha (Vahl) G.C.Tucker
  • Scirpus humboldtii (Roem. & Schult.) A.Dietr.
  • Scirpus micranthus Vahl
  • Scirpus micranthus var. humboldtii Boeckeler
  • Scirpus micranthus var. minor (Roem. & Schult.) B.Boivin
  • Scirpus minimus Pursh
  • Scirpus sesquipollicaris Willd. ex Kunth
  • Scirpus subsquarrosus Muhl.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.