Carex capillarisL.

hair-like sedge

WFO wfo-0000345294 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Carex capillaris, photographed by Derek
fig. a Derek, CC BY 4.0 / 2021-06-02 / obs. 133465791

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.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
3697354
Filed as
Carex capillaris subsp. fuscidula (V.I.Krecz. ex T.V.Egorova) Á.Löve & D.Löve
Det. by
J. M. Saarela 2014-01-01
Collected
J. M. Saarela 2014-07-22
Origin
CA
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 79 botanical countries

Regions where Carex capillaris is native: Morocco, Altay, China North-Central, Inner Mongolia, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kuril Is., Magadan, Manchuria, North Caucasus, Qinghai, Sakhalin, Transcaucasus, Türkiye, Uzbekistan, West Siberia, Yakutiya, Pakistan, Austria, Baltic States, Belarus, Central European Russia, Czechia-Slovakia, East European Russia, Finland, Føroyar, France, Germany, Great Britain, Iceland, Italy, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Romania, South European Russia, Spain, Svalbard, Sweden, Switzerland, Ukraine, Alaska, Alberta, British Columbia, California, Colorado, Greenland, Idaho, Labrador, Maine, Manitoba, Michigan, Minnesota, Montana, Nevada, New Brunswick, New Hampshire, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nova Scotia, Nunavut, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Washington, Wisconsin, Wyoming, Yukon MoroccoAltayChina North-CentralInner MongoliaKazakhstanKhabarovskKirgizstanKrasnoyarskMagadanManchuriaNorth CaucasusQinghaiSakhalinTranscaucasusTürkiyeUzbekistanWest SiberiaYakutiyaPakistanAustriaBaltic StatesBelarusCentral European RussiaCzechia-SlovakiaEast European RussiaFinlandFranceGermanyIcelandItalyNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandRomaniaSouth European RussiaSpainSvalbardSwedenSwitzerlandUkraineAlaskaAlbertaBritish ColumbiaCaliforniaColoradoGreenlandIdahoLabradorMaineManitobaMichiganMinnesotaMontanaNevadaNew BrunswickNew HampshireNew MexicoNew YorkNewfoundlandNorth DakotaNorthwest TerritoriesNova ScotiaNunavutOntarioOregonQuébecSaskatchewanSouth DakotaUtahWashingtonWisconsinWyomingYukon KoreaFøroyar
Native distribution of Carex capillaris, 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
Alaska ASK NORTHERN AMERICA
Alberta ABT
British Columbia BRC
California CAL
Colorado COL
Greenland GNL
Idaho IDA
Labrador LAB
Maine MAI
Manitoba MAN
Michigan MIC
Minnesota MIN
Montana MNT
Nevada NEV
New Brunswick NBR
New Hampshire NWH
New Mexico NWM
New York NWY
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Nova Scotia NSC
Nunavut NUN
Ontario ONT
Oregon ORE
Québec QUE
Saskatchewan SAS
South Dakota SDA
Utah UTA
Washington WAS
Wisconsin WIS
Wyoming WYO
Yukon YUK
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Central European Russia RUC
Czechia-Slovakia CZE
East European Russia RUE
Finland FIN
Føroyar FOR
France FRA
Germany GER
Great Britain GRB
Iceland ICE
Italy ITA
North European Russia RUN
Northwest European Russia RUW
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Romania ROM
South European Russia RUS
Spain SPA
Svalbard SVA
Sweden SWE
Switzerland SWI
Ukraine UKR
Altay ALT ASIA-TEMPERATE
China North-Central CHN
Inner Mongolia CHI
Kazakhstan KAZ
Khabarovsk KHA
Kirgizstan KGZ
Korea KOR
Krasnoyarsk KRA
Kuril Is. KUR
Magadan MAG
Manchuria CHM
North Caucasus NCS
Qinghai CHQ
Sakhalin SAK
Transcaucasus TCS
Türkiye TUR
Uzbekistan UZB
West Siberia WSB
Yakutiya YAK
Morocco MOR AFRICA
Pakistan PAK ASIA-TROPICAL

Not drawn on the map: Kuril Is., Great Britain. We hold no public-domain boundary for these regions, so they are listed rather than guessed at.

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.

Where it actually grows measured, from 684 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -25.5 °C -13.6 °C -8.1 °C
Warmest month, mean daily high 12.4 °C 20.0 °C 24.1 °C
Annual rainfall 423 mm 901 mm 2,022 mm
Rainfall in the driest quarter 39 mm 156 mm 366 mm

It is found where winters are arctic. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 684 research-grade observations of Carex capillaris that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 24 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.

  • Carex capillaris f. alpestris Norm.
  • Carex capillaris f. major Drejer
  • Carex capillaris f. minima Beck
  • Carex capillaris f. saskatschewana (Boeckeler) L.H.Bailey
  • Carex capillaris f. typica B.Boivin
  • Carex capillaris subsp. major (Drejer) Böcher
  • Carex capillaris var. alpestris Andersson
  • Carex capillaris var. capillaris
  • Carex capillaris var. castanea Nyman
  • Carex capillaris var. elongata Olney ex Fernald
  • Carex capillaris var. major Drejer
  • Carex capillaris var. minima Beck
  • Carex capillaris var. paludosa F.Schmidt
  • Carex capillaris var. robustior Drejer
  • Carex capillaris var. tenuior Drejer
  • Carex capillaris var. tenuior Lange
  • Carex fuscidula V.I.Krecz. ex T.V.Egorova
  • Carex pendula Geners.
  • Carex plena Clairv.
  • Carex saskatschawana Boeckeler
  • Carex saskatschewana Boeckeler
  • Carex tiogana D.W.Taylor & J.D.Mastrog.
  • Loxotrema capillaris (L.) Raf.
  • Trasus capillaris (L.) Gray

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.