Ontologia

Bletia warnockii

(Ames & Correll) Sosa & M.W.Chase

ENLR Monde (IUCN)
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Bletia warnockii.

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

Liste rouge IUCN

EN · En dangercritères DDécroissante
Évaluation complète
Évaluation
2015 · v3.1
Altitude
m
Profondeur
m
État de la populationExpert
There are only 20 known sites of occurrence for this species in Texas. The species is also known to occur at four sites in Arizona, although at one site of historic the species has not been seen since 1992 (United States Forest Service unpubl. data). The number of individual mature individuals in the population is not known. However, for sites where the number of mature individuals has been anecdotally recorded during site-visits, most have had only one to 10 individuals during any given visit. Therefore, the total population size annually is likely less than 250 mature individuals. We calculated an area of occupancy (AOO) of 104 km2 and an extent of occurrence (EOO) of 742,042.95 km2 for this taxon. The species is referred to as “sporadic and rare” by the United States Forest Service (unpubl. data). Coleman described the species as rare throughout its range (2001). As the species is no longer seen at one site where it was previously recorded, it is reasonable to assume that the population has declined.

Menaces identifiées(6 menaces classées CMP-IUCN)

  • 1_1
    Housing & urban areas
    Ongoing
  • 1_2
    Commercial & industrial areas
    Ongoing
  • 2_1_3
    Agro-industry farming
    Ongoing
  • 5_2_1
    Intentional use (species is the target)
    Ongoing
  • 6_1
    Recreational activities
    Ongoing
  • 6_3
    Work & other activities
    Ongoing
Description complète des menacesExpert
Habitat destruction and harm to individual plants are credible threats to this species. Although there is no documented evidence of collection of this species, as with many orchid species, this orchid may be subject to collection from the wild by orchid enthusiasts.

Habitats préférentiels (classification IUCN)

  • 1_4Forest - Temperate
Mesures de conservation recommandéesExpert
Under the Arizona Native Plant Law the Texas Crested Coralroot Orchid is “Highly Safeguarded” (Arizona Department of Agriculture webpage:https://agriculture.az.gov/protected-native-plants-categories). However, under Arizona law, if a protected plant species occurs on private land, the landowner may destroy, remove, sell or give away any protected plant with proper notice to the Arizona Department of Agriculture, assuming required permits have been procured. Only one site of known occurrence in Arizona can be confirmed to exist on public land, although at this particular site the species has not been seen since 1992 (United States Forest Service unpubl. data). While nominated for listing under the United States Endangered Species Act in the early 1980s, the species was not listed and has no federal protection. This species is not protected in Texas. The protective status of the species is not known for Mexico. The conservation actions that would most benefit the Texas Crested Coralroot Orchid are habitat protection and prohibitions against the injury, destruction or collection of individual plants. This species is listed on CITES Appendix II (CITES 2015).
Actions de conservation (13)Expert
  • 1_1Site/area protection
  • 1_2Resource & habitat protection
  • 2_1Site/area management
  • 2_2Invasive/problematic species control
  • 2_3Habitat & natural process restoration
  • 3_1_2Trade management
  • 3_3_1Reintroduction
  • 3_3_2Benign introduction
  • 3_4_1Captive breeding/artificial propagation
  • 4_1Formal education
  • 4_3Awareness & communications
  • 5_1_2National level
  • 5_1_3Sub-national level
Usage & commerce (1)Expert
  • 13Pets/display animals, horticulture
    internationalnational
Priorités de recherche (9)Expert
  • 1_1Taxonomy
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 1_5Threats
  • 2_1Species Action/Recovery Plan
  • 2_2Area-based Management Plan
  • 3_1Population trends
  • 3_2Harvest level trends
  • 3_3Trade trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Nearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or Herb
Références bibliographiques (9)Expert
  1. CITES. 2015. The CITES Appendices. Available at: <a href="https://cites.org/eng/app/appendices.php">https://cites.org/eng/app/appendices.php</a>. (Accessed: July 2015).
  2. IUCN. 2015. The IUCN Red List of Threatened Species. Version 2015-4. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 19 November 2015).
  3. Kennedy, A.H., Taylor, D.L. and Watson, L.E. 2011. Mycorrhizal Specificity in the Fully Mycoheterotrophic <i>Hexalectris</i> Raf. (Orchidaceae: Epidendroideae). <i>Molecular Ecology</i> 20(6): 1303-1316.
  4. Kennedy, A. and Watson, L. 2010. Species Delimitations and Phylogenetic Relationships Within the Fully Myco-heterotrophic <i>Hexalectris</i> (Orchidaceae). <i>Systematic Botany </i> 31(1): 64-67.
  5. United States Forest Service, Southwest Region. 2007. Regional Forester’s List of Sensitive Plants. Unpublished.
  6. Catling, P.M. 2004. A Synopsis of the Genus <i>Hexalectris</i> in the United States and a New Variety of <i>Hexalectris revoluta</i>. <i>Native Orchid Conference Journal </i> 1: 5-25.
  7. Coleman, R.A. 2001. Tracking rare orchids (Orchidaceae). In: J. Maschinski and L. Holter (eds), Southwestern Rare and Endangered plants: Proceedings of the Third Conference, pp. 95-98. Flagstaff, Arizona.
  8. Liggio, J. and Liggio, A.O. 1999. <i>Wild Orchids of Texas</i>. University of Texas Press, Austin.
  9. Arizona Department of Agriculture. Protected Native Plants by Categories-Highly Safeguarded Protected Native Plants. (Accessed: June 15 2014).
Évaluateurs & contributeurs (2)Expert
assessor
Goedeke, T., Sharma, J., Treher, A., Frances, A. & Poff, K.
evaluator
Rankou, H.

Goedeke, T., Sharma, J., Treher, A., Frances, A. & Poff, K. 2015. Hexalectris warnockii. The IUCN Red List of Threatened Species 2015: e.T64176203A64176207. Accessed on 05 May 2026.

Répartition mondiale (heatmap GBIF)Construction en cours

0 obs · 0 cellules
Construction par partitions temporelles GBIF0%

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km). Filtre qualité : précision coordonnée < 10 km. Coloration quantile (q50/70/90/99). Fond carte : OpenFreeMap · © OpenStreetMap.

Distribution mondiale

Calcul de la distribution GBIF· ~10–60 s

Phénologie

Calcul du calendrier d'apparition· ~5–30 s

Consulter sur les bases externes

Observations & statuts

Bibliographie

Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (2)— redirigent vers cette page

  • Hexalectris warnockiiAmes & Correll
  • Hexalectris warnockii f. flavidaCatling

Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).