Corallorhiza trifidaChâtel.

Yellow coralrootearly coralrootnorthern coralrootyellow coralroot

WFO wfo-0000924382 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Corallorhiza trifida, photographed by F Quiec
fig. a F Quiec, CC BY-SA 4.0 / 2022-06-07 / obs. 204511669

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 102 botanical countries

Regions where Corallorhiza trifida is native: Altay, Amur, Buryatiya, China North-Central, China South-Central, Chita, Inner Mongolia, Irkutsk, Kamchatka, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kuril Is., Magadan, Manchuria, Mongolia, North Caucasus, Qinghai, Tibet, Transcaucasus, Türkiye, Tuva, West Siberia, Yakutiya, Nepal, Pakistan, West Himalaya, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, Czechia-Slovakia, Denmark, East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Iceland, Italy, Krym, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Romania, Spain, Sweden, Switzerland, Ukraine, Alaska, Alberta, British Columbia, California, Colorado, Connecticut, Delaware, District of Columbia, Greenland, Idaho, Illinois, Indiana, Labrador, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Montana, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, Northwest Territories, Nova Scotia, Nunavut, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Utah, Vermont, Washington, West Virginia, Wisconsin, Wyoming, Yukon AltayAmurBuryatiyaChina North-CentralChina South-CentralChitaInner MongoliaIrkutskKamchatkaKazakhstanKhabarovskKirgizstanKrasnoyarskMagadanManchuriaMongoliaNorth CaucasusQinghaiTibetTranscaucasusTürkiyeTuvaWest SiberiaYakutiyaNepalPakistanWest HimalayaAustriaBaltic StatesBelarusBelgiumBulgariaCentral European RussiaCzechia-SlovakiaDenmarkEast European RussiaFinlandFranceGermanyGreeceHungaryIcelandItalyKrymNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandRomaniaSpainSwedenSwitzerlandUkraineAlaskaAlbertaBritish ColumbiaCaliforniaColoradoConnecticutGreenlandIdahoIllinoisIndianaLabradorMaineManitobaMarylandMassachusettsMichiganMinnesotaMontanaNew BrunswickNew HampshireNew JerseyNew MexicoNew YorkNewfoundlandNorthwest TerritoriesNova ScotiaNunavutOhioOntarioOregonPennsylvaniaPrince Edward I.QuébecSaskatchewanSouth DakotaUtahVermontWashingtonWest VirginiaWisconsinWyomingYukon KoreaDelawareDistrict of ColumbiaRhode I.
Native distribution of Corallorhiza trifida, 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
Connecticut CNT
Delaware DEL
District of Columbia WDC
Greenland GNL
Idaho IDA
Illinois ILL
Indiana INI
Labrador LAB
Maine MAI
Manitoba MAN
Maryland MRY
Massachusetts MAS
Michigan MIC
Minnesota MIN
Montana MNT
New Brunswick NBR
New Hampshire NWH
New Jersey NWJ
New Mexico NWM
New York NWY
Newfoundland NFL
Northwest Territories NWT
Nova Scotia NSC
Nunavut NUN
Ohio OHI
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
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Belgium BGM
Bulgaria BUL
Central European Russia RUC
Czechia-Slovakia CZE
Denmark DEN
East European Russia RUE
Finland FIN
France FRA
Germany GER
Great Britain GRB
Greece GRC
Hungary HUN
Iceland ICE
Italy ITA
Krym KRY
North European Russia RUN
Northwest European Russia RUW
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Spain SPA
Sweden SWE
Switzerland SWI
Ukraine UKR
Altay ALT ASIA-TEMPERATE
Amur AMU
Buryatiya BRY
China North-Central CHN
China South-Central CHC
Chita CTA
Inner Mongolia CHI
Irkutsk IRK
Kamchatka KAM
Kazakhstan KAZ
Khabarovsk KHA
Kirgizstan KGZ
Korea KOR
Krasnoyarsk KRA
Kuril Is. KUR
Magadan MAG
Manchuria CHM
Mongolia MON
North Caucasus NCS
Qinghai CHQ
Tibet CHT
Transcaucasus TCS
Türkiye TUR
Tuva TVA
West Siberia WSB
Yakutiya YAK
Nepal NEP ASIA-TROPICAL
Pakistan PAK
West Himalaya WHM

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.

Flowering 467 in flower of 635 examined

Proportion of examined Corallorhiza trifida in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 0 0 too few examined
Apr 2 3 too few examined
May 113 125 90% 84% to 94%
Jun 295 357 83% 78% to 86%
Jul 57 138 41% 33% to 50%
Aug 0 10 0% 0% to 28%
Sep 0 2 too few examined
Oct 0 0 too few examined
Nov 0 0 too few examined
Dec 0 0 too few examined

Peak flowering in May. Each bar is the share of Corallorhiza trifida 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. 467 of 635 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 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 38 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.

  • Corallorhiza anandae Malhotra & Balodi
  • Corallorhiza corallorhiza (L.) H.Karst.
  • Corallorhiza corallorhiza subsp. coloradensis Cockerell
  • Corallorhiza dentata Host
  • Corallorhiza ericetorum Drejer
  • Corallorhiza halleri Rich.
  • Corallorhiza innata R.Br.
  • Corallorhiza innata subsp. ericetorum (Drejer) Nyman
  • Corallorhiza innata var. discolor Rchb.
  • Corallorhiza innata var. ericetorum (Drejer) Rchb.f.
  • Corallorhiza innata var. virescens (Drejer) Farr
  • Corallorhiza intacta Cham. & Schltdl.
  • Corallorhiza integra Châtel.
  • Corallorhiza jacquemontii Decne.
  • Corallorhiza nemoralis Sw. ex Nyman
  • Corallorhiza neottia Scop.
  • Corallorhiza occidentalis Bach.Pyl.
  • Corallorhiza trifida f. ericetorum (Drejer) Soó
  • Corallorhiza trifida f. integra (Châtel.) Soó
  • Corallorhiza trifida f. suaveolens Bordz.
  • Corallorhiza trifida f. verna (Nutt.) P.M.Br.
  • Corallorhiza trifida subsp. virescens (Drejer) Løjtnant
  • Corallorhiza trifida var. ericetorum (Drejer) Rchb.f.
  • Corallorhiza trifida var. integra (Châtel.) Schinz & Thell.

and 14 more.

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.