Scirpus microcarpusJ.Presl & C.Presl

panicled bulrush

WFO wfo-0000541492 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Scirpus microcarpus, photographed by Dan Horowitz
fig. a Dan Horowitz, CC0 1.0 / 2022-05-29 / obs. 203747355
Scirpus microcarpus, photographed by Ken-ichi Ueda
fig. b Ken-ichi Ueda, CC BY 4.0 / obs. 200041409
Scirpus microcarpus, photographed by Garth Harwood
fig. c Garth Harwood, CC BY 4.0 / obs. 194006658
Scirpus microcarpus, photographed by Ken-ichi Ueda
fig. d Ken-ichi Ueda, CC BY 4.0 / obs. 167676579
Scirpus microcarpus, photographed by Matt Lavin
fig. e Matt Lavin, CC BY 4.0 / obs. 169149549
Scirpus microcarpus, photographed by Erin Springinotic
fig. f Erin Springinotic, CC0 1.0 / obs. 160767871
Scirpus microcarpus, photographed by Erin Springinotic
fig. g Erin Springinotic, CC0 1.0 / obs. 160779729
Scirpus microcarpus, photographed by Jason Grant
fig. h Jason Grant, CC BY 4.0 / obs. 146317537

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 46 botanical countries

Regions where Scirpus microcarpus is native: Kamchatka, Alaska, Alberta, Arizona, British Columbia, California, Colorado, Connecticut, Idaho, Illinois, Iowa, Kentucky, Labrador, Maine, Manitoba, Massachusetts, Mexico Northwest, Michigan, Minnesota, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nova Scotia, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Utah, Vermont, Washington, West Virginia, Wisconsin, Wyoming, Yukon KamchatkaAlaskaAlbertaArizonaBritish ColumbiaCaliforniaColoradoConnecticutIdahoIllinoisIowaKentuckyLabradorMaineManitobaMassachusettsMexico NorthwestMichiganMinnesotaMontanaNebraskaNevadaNew BrunswickNew HampshireNew JerseyNew MexicoNew YorkNewfoundlandNorth DakotaNorthwest TerritoriesNova ScotiaOntarioOregonPennsylvaniaPrince Edward I.QuébecSaskatchewanSouth DakotaUtahVermontWashingtonWest VirginiaWisconsinWyomingYukon Rhode I.
Native distribution of Scirpus microcarpus, 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
Arizona ARI
British Columbia BRC
California CAL
Colorado COL
Connecticut CNT
Idaho IDA
Illinois ILL
Iowa IOW
Kentucky KTY
Labrador LAB
Maine MAI
Manitoba MAN
Massachusetts MAS
Mexico Northwest MXN
Michigan MIC
Minnesota MIN
Montana MNT
Nebraska NEB
Nevada NEV
New Brunswick NBR
New Hampshire NWH
New Jersey NWJ
New Mexico NWM
New York NWY
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Nova Scotia NSC
Ontario ONT
Oregon ORE
Pennsylvania PEN
Prince Edward I. PEI
Québec QUE
Rhode I. RHO
Saskatchewan SAS
South Dakota SDA
Utah UTA
Vermont VER
Washington WAS
West Virginia WVA
Wisconsin WIS
Wyoming WYO
Yukon YUK
Kamchatka KAM ASIA-TEMPERATE

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 13 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.

  • Scirpus avatshensis Kom.
  • Scirpus lenticularis Torr.
  • Scirpus macounii Holm
  • Scirpus microcarpus f. radiosus (Fernald) C.F.Reed
  • Scirpus microcarpus subsp. rubrotinctus (Fernald) Á.Löve & D.Löve
  • Scirpus microcarpus var. confertus (Fernald) House
  • Scirpus microcarpus var. longispicatus M.Peck
  • Scirpus microcarpus var. rubrotinctus (Fernald) M.E.Jones
  • Scirpus rubrotinctus Fernald
  • Scirpus rubrotinctus f. confertus (Fernald) Weath.
  • Scirpus rubrotinctus f. radiosus Fernald
  • Scirpus rubrotinctus var. confertus Fernald
  • Scirpus sylvaticus var. microcarpus (J.Presl & C.Presl) MacMill.

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.