Aponogeton ranunculiflorus
Jacot Guill. & Marais
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
EN · En dangercritères B2ab(iii)↘Décroissante- Évaluation
- 2010 · v3.1
- Altitude
- 2400 – 3300 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species occurs in two adjoining nature reserves, where it is only potentially threatened. However these reserves are likely to have different management practises as one is in South Africa and the other in Lesotho, and therefore they should be considered separate locations. This species is known from at least one locality in Lesotho outside of protected areas, but there may possibly be others as well. These should all be considered one location as all land in Lesotho outside of protected areas are severely impacted by overgrazing, trampling, overburning and subsistence farming.
Estimated number of locations: 1 in SA; ± 3 in Lesotho;
Overall populations decline (past): 33% of the habitat has been degraded in Lesotho, stable in SA;
Time frame of decline (past): 60 years;
Overall population decline (current): continuing in Lesotho, stable in SA; Ongoing; Decline understood? Yes
Estimated number of locations: 1 in SA; ± 3 in Lesotho;
Overall populations decline (past): 33% of the habitat has been degraded in Lesotho, stable in SA;
Time frame of decline (past): 60 years;
Overall population decline (current): continuing in Lesotho, stable in SA; Ongoing; Decline understood? Yes
Menaces identifiées(4 menaces classées CMP-IUCN)
7_1_3Trend Unknown/UnrecordedRapid DeclinesUnknownOngoing11_1Habitat shifting & alterationSlow, Significant DeclinesWhole (>90%)Future2_3_2Small-holder grazing, ranching or farmingSlow, Significant DeclinesUnknownOngoing9_3_2Soil erosion, sedimentationSlow, Significant DeclinesUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Lesotho mires are very fragile ecosystems and extremely sensitive to grazing and trampling, as well as burning (Mucina and Rutherford 2006). Across Lesotho communally owned land is severely degraded due to overgrazing, trampling, overburning, erosion and subsistence farming, even in quite remote places such as the headwaters of the Bokong River in the Maloti Mountains where direct impacts of mire degradation on subpopulations of this species have been observed (Meakins and Duckett 1993).
Habitats préférentiels (classification IUCN)
5_7Wetlands (inland) - Permanent Freshwater Marshes/Pools (under 8ha)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The situation is quite dramatically different within the Sehlabathebe Nature Reserve, the type locality of this species, where the vegetation was observed to be in good condition (Zonneveld 1998) and where there are no serious threats at present (C.R. Scott-Shaw pers. comm.)
The only known South African locality is also well protected within the Ukahlamba Drakensberg National Park, and there are no known serious threats to this site.
The only known South African locality is also well protected within the Ukahlamba Drakensberg National Park, and there are no known serious threats to this site.
Stress écologiques (5)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation
Priorités de recherche (1)Research Needed Classification — IUCNExpert
3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Freshwater (=Inland waters)
Formes de croissance
Forb or HerbHydrophyte
Références bibliographiques (12)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 2 September 2010).
- South African National Biodiversity Institute. 2007. PRE (National Herbarium, Pretoria) Computerised Information System.
- Mucina, L. and Rutherford, M.C. 2006. <i>The vegetation of South Africa, Lesotho and Swaziland. Strelitzia 19</i>. South African National Biodiversity Institue, Pretoria.
- Carbutt, C. and Edwards, T.J. 2006. The endemic and near-endemic angiosperms of the Drakensberg Alpine Centre. <i>South African Journal of Botany</i> 72(2): 105-132.
- Cook, C.D.K. 2004. <i>Aquatic and wetland plants of southern Africa</i>. Backhuys Publishers, Leiden, The Netherlands.
- Pooley, E. 2003. <i>Mountain Flowers: a field guide to the flora of the Drakensberg and Lesotho</i>. Natal Flora Publications Trust, Durban.
- Scott-Shaw, C.R. 1999. <i>Rare and threatened plants of KwaZulu-Natal and neighbouring regions</i>. KwaZulu-Natal Nature Conservation Service, Pietermaritzburg.
- Zonneveld, M. 1998. <i>Aponogeton ranunculiflorus</i>: odyssey to the top of the Lesotho mountains. <i>PlantLife</i> 18: 17-18.
- Meakins, R.H. and Duckett, D.D. 1993. Vanishing bogs of the Mountain Kingdom. <i>Veld & Flora</i> 29: 49-51.
- van Bruggen, H.W.E. 1985. A Monograph of the genus <i>Aponogeton</i> (Aponogetonaceae). <i>Bibliotheca Botanica</i> 137: 1-65.
- van Bruggen, H.W.E. 1973. Revision of the genus <i>Aponogeton</i> (Aponogetonaceae): VI. - The species of Africa. <i>Bulletin du Jardin Botanique National de Belgique - Bulletin van de Nationale Plantentuin van België</i> 43(404): 193-233.
- Jacot Guillarmod, A. and Marais, W. 1972. A new species of <i>Aponogeton</i> (Aponogetonaceae). <i>Kew Bulletin</i> 27(3): 563-565.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
L. Agenbag & C.R. Scott-Shaw
evaluator
Foden, W., Juffe, D
L. Agenbag & C.R. Scott-Shaw 2010. Aponogeton ranunculiflorus. The IUCN Red List of Threatened Species 2010: e.T185336A8391050. Accessed on 05 May 2026.
Répartition mondiale
Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.