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Scientific Name | Eriospermum arachnoideum P.L.Perry |
Higher Classification | Monocotyledons |
Family | RUSCACEAE |
National Status |
Status and Criteria | Endangered B1ab(ii,iii,v)+2ab(ii,iii,v) |
Assessment Date | 2010/07/12 |
Assessor(s) | N.A. Helme, D. Raimondo & L. von Staden |
Justification | EOO less than 142 km², AOO less than 10 km², three known locations continue to decline due to ongoing habitat loss and degradation as a result of limestone mining. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Knersvlakte. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Knersvlakte Dolomite Vygieveld, Knersvlakte Quartz Vygieveld |
Description | Succulent karoo shrubland, in rock crevices of limestone outcrops. |
Threats |
| The population at the type locality declined when the habitat was damaged due to quarrying about 10 years ago. There is currently renewed interest in limestone mining in the area — there are currently prospecting applications on both farms where this species occurs. Prospecting is likely to further damage the habitat, but as there is a lot of surface limestone particularly at the type locality, likelihood is also high that it will be mined, and this species is likely to continue to decline. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Eriospermum arachnoideum P.L.Perry | CR B1ab(ii,iii,v)+2ab(ii,iii,v) | Raimondo et al. (2009) | | Eriospermum arachnoideum P.L.Perry | Rare | Hilton-Taylor (1996) | |
Bibliography |
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Perry, P.L. 1994. A revision of the genus Eriospermum (Eriospermaceae) Contributions from the Bolus Herbarium 17:1-320.
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.
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Citation |
| Helme, N.A., Raimondo, D. & von Staden, L. 2010. Eriospermum arachnoideum P.L.Perry. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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