Taxonomy
Scientific Name
Conophytum blandum L.Bolus
Higher Classification
Dicotyledons
Family
AIZOACEAE
National Status
Status and Criteria
Vulnerable B1ab(iii,v)
Assessment Date
2020/02/10
Assessor(s)
A.J. Young, S.A. Hammer & L. von Staden
Justification
A range-restricted species to the Northern Cape, South Africa (extent of occurrence 352 km²), this species is known from between five and 10 locations, and its habitat is declining as a result of livestock overgrazing. Furthermore, certain subpopulations are declining due to collection for the specialist succulent horticultural trade. It therefore qualifies as Vulnerable under criterion B1.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape
Range
North-western Bushmanland between Steinkopf and Pofadder.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Nama Karoo, Succulent Karoo
Description
Cracks and fissures of large quartz blocks on arid hills and Bushmanland inselbergs.
Threats
Grazing and trampling by livestock is a threat to some subpopulations. Recently, there has been renewed interest in mining of mineral rich inselbergs in the area. There are no known mining or prospecting applications at any of this species' locations, but it is a potential threat. Some localised forms are popular in cultivation and a number of subpopulations are declining due to illegal collection.
Population

This species has a limited distribution range, but is very common across several quartz inselbergs, with subpopulations consisting of >5000 individuals. The population is declining due to habitat degradation and illegal collecting.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Conophytum blandum L.BolusNT D2Raimondo et al. (2009)
Conophytum blandum L.BolusLower Risk - Near Threatened Victor (2002)
Conophytum blandum L.BolusRare Hilton-Taylor (1996)
Bibliography

Bolus, H.M.L. 1936-1958. Notes on Mesembryanthemum and allied genera Part III. University of Cape Town, Bolus Herbarium, Cape Town.


Hammer, S. 2002. Dumpling and his wife: New view of the genus Conophytum. EAE Creative Colour, Norwich.


Hammer, S.A. 1993. The genus Conophytum: A conograph. Succulent Plant Publications, Pretoria.


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.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. 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
Young, A.J., Hammer, S.A. & von Staden, L. 2020. Conophytum blandum L.Bolus. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/10/28

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Distribution map

© A.J. Young


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