Racine de corail

Corallorhiza trifidaChâtel.

Plante

LCLR Monde (IUCN)

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Filtrer le graphe par contexte spatialPays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Corallorhiza trifida.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

LC · Préoccupation mineure?Inconnue

Évaluation complète

Évaluation: 2011 · v3.1
Altitude: 0 – 2300 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

Corallorhiza trifida is widespread in boreal Europe, more local in the temperate and sub-Mediterranean zones. The total population size is unknown but the species can form numerous populations with small groups and the population density is often more than 3 individuals/m².

The trend of the population remains unknown but declines appear to be ongoing on many sites due to numerous threats. In Britain the total loss of the species between 1500 and 1999 was 46%, for example. (Bournérias and Prat 2005, Delforge 1995, GIROS 2009, Harrap and Harrap 2009, Lang 2004, Pignatti 1982, Rossi 2002, Vakhrameeva et al. 2008).

Menaces identifiées(7 menaces classées CMP-IUCN)

11_3
Temperature extremes
Ongoing
2_1_4
Scale Unknown/Unrecorded
Ongoing
2_2_3
Scale Unknown/Unrecorded
Ongoing
5_2_1
Intentional use (species is the target)
Ongoing
6_3
Work & other activities
Ongoing
7_1_1
Increase in fire frequency/intensity
Ongoing
7_3
Other ecosystem modifications
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

The populations of the species and their habitats are locally declining on many sites due to numerous threats especially changes in agriculture practices, climate change, overgrowth with trees and bushes and wood-cutting. Further threats are drainage, trampling, forest fires, and plant collection. (Bournérias and Prat 2005, Delforge 1995, GIROS 2009, Harrap and Harrap 2009, Lang 2004, Pignatti 1982, Rossi 2002, Vakhrameeva et al. 2008).

Habitats préférentiels (classification IUCN)

1_4Forest - Temperate
3_4Shrubland - Temperate
4_1Grassland - Tundra
5_4Wetlands (inland) - Bogs, Marshes, Swamps, Fens, Peatlands

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

All orchid species are included under Annex B of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

The following actions are recommended to protect Corallorhiza trifida;

Protection of the habitat, especially the woodland from changes in agriculture practices and trampling.
Control the overgrowth of trees and bushes in woodland.
Fencing the vulnerable sites.
Sympathetic management of isolated populations.
Water regime must be ensured, drainage of meadows should be avoided, and provision of small dams may be necessary to avoid drying of the sites as the species very sensitive to drainage.
Raise public awareness especially about fires.
Protection of the living individuals through legislation that bans the species from being picked or dug up.
Ex situ conservation: Artificial propagation, re-introduction, seed collections.
Monitoring and surveillance of the existing populations and sites.
Estimate the population size and study their dynamics

(Bournérias and Prat 2005, Delforge 1995, GIROS 2009, Harrap and Harrap 2009, Lang 2004, Pignatti 1982, Rossi 2002, Vakhrameeva et al. 2008).

Actions de conservation (5)Conservation Actions Classification Scheme — IUCNExpert

1_1Site/area protection
3_4_2Genome resource bank
4_3Awareness & communications
5_1_2National level
5_4_2National level

Stress écologiques (12)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_1Ecosystem conversion
1_1Ecosystem conversion
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
2_1Species mortality
2_1Species mortality
2_2Species disturbance
2_3_2Competition

Priorités de recherche (2)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
3_1Population trends

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Palearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Geophyte

Références bibliographiques (16)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.2). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 10 November 2011).
The Board of Trustees of the Royal Botanic Gardens, Kew. 2010. World Checklist of Selected Plant Families. Available at: <a href="http://www.kew.org/wcsp/">http://www.kew.org/wcsp/</a>.
Naturhistoriska Riksmuseet. 2010. Den virtuella floran. Stockholm Available at: <a href="http://linnaeus.nrm.se/flora/">http://linnaeus.nrm.se/flora/</a>.
Anthos. 2010. Information System of the plants of Spain. Real Jardín Botánico, CSIC – Fundación Biodiversidad. Available at: <a href="www.anthos.es">www.anthos.es</a>.
CRSF/ZDSF. 2010. Online-Flora. Chambésy, Geneva Available at: <a href="http://www.crsf.ch/">http://www.crsf.ch/</a>.
Plants For a Future. 2010. Plants For a Future. Available at: <a href="http://www.pfaf.org/index.php">http://www.pfaf.org/index.php</a>. (Accessed: 10/04).
GIROS. 2009. Orchidee d'Italia. Castello srl, Milano.
Harrap, A. and Harrap, S. 2009. Orchids of Britain and Ireland A field and Site Guide. A&C Black Publishers Ltd., London.
Vakhrameeva, M.G., Tatarenko, I.V., Varlygina, G.K. and Zagulskii, M.N. 2008. Orchids of Russia and adjacent countries (within the borders of the former USSR). A. R. G. Gantner Verlag, Ruggell, Liechtenstein.
Euro+Med Plantbase. 2006-2010. Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Berlin Available at: <a href="http://ww2.bgbm.org/EuroPlusMed/">http://ww2.bgbm.org/EuroPlusMed/</a>.
Bournérias, M. and Prat, D. (eds). 2005. Les Orchidées de France, Belgique et Luxembourg, 2ème édition. pp. 504. Biotope, Mèze.
Lang, D. 2004. Britain's Orchids. WILDGuides Ltd., Old Basing.
Rossi, W. 2002. Orchidee d'Italia. Ministero dell'ambiente e della tutela del territorio, Direzione conservazione della natura : Istituto nazionale per la fauna selvatica, Bologna.
Association Tela Botanica. 2000–2010. Le reseau de la botanique francophone. Available at: <a href="http://www.tela-botanica.org/">http://www.tela-botanica.org/</a>.
Delforge, P. 1995. Orchids of Britain and Europe. Delachaux et Niestlé SA, Lausanne.
Pignatti, S. 1982. Flora d'Italia. Vol. 3. Edagricole, Bologna.

Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Rankou, H.

evaluator

Fay, M., Collett, L. & Bilz, M.

Rankou, H. 2011. Corallorhiza trifida (Europe assessment). The IUCN Red List of Threatened Species 2011: e.T175935A7147872. Accessed on 05 May 2026.

Indicateurs écologiquesTolérance thermique · radar EIVE · triangle CSR

Indicateurs écologiques Ellenberg-type

EIVE 1.0 — Dengler 2023

Position de l'espèce sur les 5 dimensions écologiques européennes (M / N / R / L / T), échelle 0-10. La zone estompée représente la niche width (variabilité tolérée).

Humidité: xérophile ↔ hygrophile
Azote: oligotrophe ↔ nitrophile
Réaction (pH): silicicole ↔ calcicole
Lumière: sciaphile ↔ héliophile
Température: cryophile ↔ thermophile

Source : EIVE 1.0 (Dengler et al. 2023). CC-BY 4.0. Échelle harmonisée 0-10 (équivalent inverse-rang sur les systèmes Ellenberg, Landolt, Pignatti, etc.). Niche width = écart-type d'estimation, indicateur de fiabilité (zone estompée).