Oreojuncus trifidus(L.) Záv.Drábk. & Kirschner

highland rush

WFO wfo-0001337938 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Oreojuncus trifidus, photographed by Steven Lamonde
fig. a Steven Lamonde, CC BY 4.0 / 2022-06-05 / obs. 206017481
Oreojuncus trifidus, photographed by Steven Lamonde
fig. b Steven Lamonde, CC BY 4.0 / obs. 164452949
Oreojuncus trifidus, photographed by Alan Weakley
fig. c Alan Weakley, CC0 1.0 / obs. 149346545
Oreojuncus trifidus, photographed by Alan Weakley
fig. d Alan Weakley, CC0 1.0 / obs. 149345659
Oreojuncus trifidus, photographed by Alan Weakley
fig. e Alan Weakley, CC0 1.0 / obs. 148418018
Oreojuncus trifidus, photographed by Jens-Christian Svenning
fig. f Jens-Christian Svenning, CC BY 4.0 / obs. 146392496
Oreojuncus trifidus, photographed by Jens-Christian Svenning
fig. g Jens-Christian Svenning, CC BY 4.0 / obs. 145933818
Oreojuncus trifidus, photographed by Jens-Christian Svenning
fig. h Jens-Christian Svenning, CC BY 4.0 / obs. 145773393

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 41 botanical countries

Regions where Oreojuncus trifidus is native: Altay, Krasnoyarsk, West Siberia, Albania, Austria, Bulgaria, Czechia-Slovakia, East European Russia, Finland, Føroyar, France, Germany, Great Britain, Greece, Iceland, Italy, North European Russia, Norway, NW. Balkan Pen., Poland, Romania, Spain, Sweden, Switzerland, Ukraine, Connecticut, Greenland, Labrador, Maine, Maryland, New Brunswick, New Hampshire, New York, Newfoundland, North Carolina, Nova Scotia, Québec, Tennessee, Vermont, Virginia, West Virginia AltayKrasnoyarskWest SiberiaAlbaniaAustriaBulgariaCzechia-SlovakiaEast European RussiaFinlandFranceGermanyGreeceIcelandItalyNorth European RussiaNorwayNW. Balkan Pen.PolandRomaniaSpainSwedenSwitzerlandUkraineConnecticutGreenlandLabradorMaineMarylandNew BrunswickNew HampshireNew YorkNewfoundlandNorth CarolinaNova ScotiaQuébecTennesseeVermontVirginiaWest Virginia Føroyar
Native distribution of Oreojuncus trifidus, 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
Albania ALB EUROPE
Austria AUT
Bulgaria BUL
Czechia-Slovakia CZE
East European Russia RUE
Finland FIN
Føroyar FOR
France FRA
Germany GER
Great Britain GRB
Greece GRC
Iceland ICE
Italy ITA
North European Russia RUN
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Spain SPA
Sweden SWE
Switzerland SWI
Ukraine UKR
Connecticut CNT NORTHERN AMERICA
Greenland GNL
Labrador LAB
Maine MAI
Maryland MRY
New Brunswick NBR
New Hampshire NWH
New York NWY
Newfoundland NFL
North Carolina NCA
Nova Scotia NSC
Québec QUE
Tennessee TEN
Vermont VER
Virginia VRG
West Virginia WVA
Altay ALT ASIA-TEMPERATE
Krasnoyarsk KRA
West Siberia WSB

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is 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.

Flowering 126 in flower of 381 examined

Peak flowering in Jul. Each bar is the share of Oreojuncus trifidus observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 126 of 381 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 14 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.

  • Juncus alpestris Bubani
  • Juncus trifidus L.
  • Juncus trifidus subsp. carolinianus Hämet-Ahti
  • Juncus trifidus subsp. monanthos (Jacq.) Asch. & Graebn.
  • Juncus trifidus unranked curvatus Asch. & Graebn.
  • Juncus trifidus var. fastigiatus Tausch
  • Juncus trifidus var. medius Rouy
  • Juncus trifidus var. monanthos (Jacq.) Bluff & Fingerh.
  • Juncus trifidus var. pleianthos Bluff & Fingerh.
  • Juncus trifidus var. sessiliflorus Tausch
  • Juncus trifidus var. trifidus
  • Juncus trifidus var. triflorus Krylov
  • Juncus trifidus var. uniflorus Tausch
  • Juncus trifidus var. vaginatus Neilr.

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. USDA PLANTS Database. common name, checklist symbol JUTR2. public domain. 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.