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Scientific Name | Diplosoma retroversum (Kensit) Schwantes |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Diplosoma leipoldtii L.Bolus, Mitrophyllum nanum N.E.Br. |
National Status |
Status and Criteria | Endangered B1ab(ii,iii) |
Assessment Date | 2005/07/21 |
Assessor(s) | C. Klak, E.J. van Jaarsveld & J.E. Victor |
Justification | EOO<3000 km², five small, severely fragmented subpopulations remain after most of this species' habitat has been transformed for wheat cultivation. Subpopulations near Eendekuil are declining due to ongoing habitat loss to housing development. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Between Piketberg and Grey's Pass, Eendekuil and Piekenierskloof Pass. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Piketberg Quartz Succulent Shrubland, Swartland Shale Renosterveld, Hopefield Sand Fynbos |
Description | Malmesbury shale with overlaying quartz pebbles. |
Threats |
| This species is threatened by agriculture (wheatlands). The population could be destroyed if further soil erosion occurs or if the area is cultivated (ISEP, 1993). Low cost housing are an additional threat close to Eendekuil, this threat is currently ongoing. |
Population |
Population trend | Decreasing |
Conservation |
| Not currently conserved in any formally protected area. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Diplosoma retroversum (Kensit) Schwantes | EN B1ab(ii,iii) | Raimondo et al. (2009) | | Diplosoma retroversum (Kensit) Schwantes | Endangered | Hilton-Taylor (1996) | | Diplosoma retroversum (Kensit) Schwantes | Endangered | Hall et al. (1980) | | Diplosoma leipoldtii L.Bolus | Indeterminate | Hall et al. (1980) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, 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.
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Citation |
| Klak, C., van Jaarsveld, E.J. & Victor, J.E. 2005. Diplosoma retroversum (Kensit) Schwantes. National Assessment: Red List of South African Plants version . Accessed on 2025/05/15 |
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