Ceropegia insignis

Taxonomy
Scientific Name
Ceropegia insignis R.A.Dyer
Higher Classification
Dicotyledons
Family
APOCYNACEAE
National Status
Status and Criteria
Endangered B1ab(iii)+2ab(iii)
Assessment Date
2016/08/24
Assessor(s)
N. Hahn & L. von Staden
Justification
A range-restricted species (EOO 164 km²), occurring at two to three locations and declining due to ongoing habitat loss and degradation.
Distribution
Endemism
South African endemic
Provincial distribution
Limpopo, North West
Range
Northern North West province and adjacent areas in Limpopo between Ramotswa and Dwaalboom. It possibly also occurs in adjacent areas in Botswana.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Dwarsberg-Swartruggens Mountain Bushveld, Dwaalboom Thornveld
Description
Stony slopes and sandy soils in grassland and open savanna.
Threats
Field observations at the type locality indicate that the habitat is severely degraded due to overgrazing, erosion and bush encroachment (Hahn 2013). In Limpopo Province it is threatened by ongoing habitat loss to crop cultivation.
Population

This species is known from only a few collections, and was last recorded in 1995. There are two disjunct subpopulations, and it is possible that others may exist in the area in between, which is remote and botanically poorly explored. Surveys of the type locality failed to relocate the subpopulation (Hahn 2013). The habitat is very degraded and it may be locally extinct in this area.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Ceropegia insignis R.A.DyerRare Raimondo et al. (2009)
Ceropegia insignis R.A.DyerVU D2Victor (2002)
Ceropegia insignis R.A.DyerInsufficiently Known Hilton-Taylor (1996)
Bibliography

Dyer, R.A. 1943. Ceropegia insignis. Flowering Plants of Africa 23:t. 902.


Dyer, R.A. 1980. Brachystelma, Ceropegia and Riocreuxia. In: O.A. Leistner (ed). Flora of Southern Africa 27 Part 4:1-88. Botanical Research Institute, Pretoria.


Hahn, N. 2013. Rare, endangered and endemic flora of the North West Province. Unpublished Report to the Department of Economic Development, Conservation and Tourism, North West Provincial Government.


Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.


Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.


Citation
Hahn, N. & von Staden, L. 2016. Ceropegia insignis R.A.Dyer. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/04/28

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Distribution map


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