Ontologia

Chlorophytum immaculatum

(Hepper) Nordal

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

Graphe en cours d’indexation

Calcul du tissu écologique de Chlorophytum immaculatum.

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

Liste rouge IUCN

VU · Vulnérablecritères B2ab(i,ii,iii)?Inconnue
Évaluation complète
Évaluation
2019 · v3.1
Altitude
10470 m
Profondeur
m
État de la populationExpert
There is no population information available for this species. It is only known from ten herbarium specimens, nine were collected between 1951 and 1977, with only one more recent specimen collected in Mali in 2012. Despite extensive botanical collecting in Guinea by the Royal Botanic Gardens Kew and Guinean botanists since 2006 this species has not been recollected in Guinea. Surveys for this species are recommended to study the species population size and trends.

Menaces identifiées(3 menaces classées CMP-IUCN)

  • 2_3_2
    Small-holder grazing, ranching or farming
    UnknownUnknownOngoing
  • 2_1_2
    Small-holder farming
    Slow, Significant DeclinesMajority (50-90%)Ongoing
  • 3_2
    Mining & quarrying
    Very Rapid DeclinesMinority (<50%)Future
Description complète des menacesExpert
The species occurs in seasonally flooded ferralitic grasslands which are threatened by agriculture, fishing and livestock grazing (Adams 1993). In Senegal the species occurs in the delta near the coast where there is rice cultivation (Adams 1993). Satellite imagery shows rice cultivation and other agriculture close to the two known localities for the species in the delta. The third collection from Senegal is from Kedougou region where there is mining exploration and satellite imagery also shows crop cultivation nearby. In Mali the species has been collected in Kayes region near an area where there is a planned new uranium mine (M.Cheek pers. comm. 2018) and also in Sikasso region where satellite imagery shows many small villages and areas of agriculture. The two known localities in Guinea Bissau (Gabu region, close to the border with Guinea) and Sierra Leone (Northern Province, close to the border with Guinea) are both fairly remote areas with no known threats. In Guinea the species is known from three localities in Boké region. Two are from Koundara prefecture where agriculture and small towns are visible on satellite imagery close to the localities where the species was collected. The third locality in Guinea in Gaoual prefecture is fairly remote with no known threats.

Habitats préférentiels (classification IUCN)

  • 2_1Savanna - Dry
  • 4_6Grassland - Subtropical/Tropical Seasonally Wet/Flooded
Mesures de conservation recommandéesExpert
The species occurs in Kuru Hills Forest Reserve in Sierra Leone and Gambie-Koulountou Ramsar wetland site in Guinea (IUCN and UNEP-WCMC 2018). However Gambie-Koulountou Ramsar wetland site was only established recently in 2006. The species has also been collected close to Foret des Narangs Forest Reserve and Basse-Casamance National Park in Senegal and may occur in these protected areas. 

Actions de conservation (1)Expert
  • 3_4_2Genome resource bank
Stress écologiques (5)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
  • 2_1Species mortality
Priorités de recherche (5)Expert
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 1_5Threats
  • 3_1Population trends
  • 3_4Habitat trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or Herb
Références bibliographiques (12)Expert
  1. IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 04 July 2019).
  2. WCSP. 2018. World Checklist of Selected Plant Families. Available at: <a href=" http://apps.kew.org/wcsp/"> http://apps.kew.org/wcsp/</a>.
  3. GBIF. 2018. Global Biodiversity Information Facility. Available at: <a href="http://data.gbif.org/species/">http://data.gbif.org/species/</a>.
  4. BGCI. 2018. PlantSearch online database. Richmond, UK Available at: <a href="www.bgci.org/plant_search.php">www.bgci.org/plant_search.php</a>. (Accessed: 2018).
  5. IUCN and UNEP-WCMC. 2018. The World Database on Protected Areas (WDPA). Cambridge, U.K. Available at: <a href="www.protectedplanet.net">www.protectedplanet.net</a>.
  6. Onana, J.M. 2011. <i> The vascular plants of Cameroon : a taxonomic checklist with IUCN assessments </i>. Ministry of Scientific Research and Innovation, Yaounde, Cameroon.
  7. Bachman, S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith and L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. <i>Zookeys</i> 150: 117–126.
  8. Lisowski, S. 2009. <i>Flore (Angiospermes) de la République de Guinée</i>. Jardin Botanique National de Belgique, Meise.
  9. Brunken, U., Schmidt, M., Dressler, S., Janssen, T., Thiombiano, A. and Zizka, G. 2008. West African plants – a photo guide. Frankfurt/Main Available at: <a href="www.westafricanplants.senckenberg.de.">www.westafricanplants.senckenberg.de.</a>.
  10. Akoegninou, A., van der Burg, J.W. and var der Maesen, L.J.G. 2006. <i>Flore analytique du Benin</i>. Backhuys, Leiden.
  11. Adams, W.M. 1993. Indigenous use of wetlands and sustainable development in West Africa. <i>The Geographical Journal</i> 159(2): 209-218.
  12. Hepper, F.N. (ed.). 1968. <i>Flora of West Tropical Africa </i>. Volume 3 part 1 (edition 2), pp. 1-574. Crown Agents for Overseas Governments and Administrations, London.
Évaluateurs & contributeurs (5)Expert
assessor
Williams, E. & Cheek, M.
contributor
Rokni, S. & Lomer, R.
evaluator
Diop, F.N.
facilitators
Hargreaves, S.
institutions
Royal Botanic Gardens, Kew

Williams, E. & Cheek, M. 2019. Chlorophytum immaculatum. The IUCN Red List of Threatened Species 2019: e.T116121528A116121560. 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 (1)— redirigent vers cette page

  • Anthericum immaculatumHepper

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