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Scientific Name | Askidiosperma rugosum Esterh. |
Higher Classification | Monocotyledons |
Family | RESTIONACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2015/11/23 |
Assessor(s) | L. von Staden |
Justification | A localized species (EOO 23 km²), known from two locations and declining due to ongoing habitat loss and degradation as well as competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Palmiet River Valley around Elgin and Houw Hoek. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Kogelberg Sandstone Fynbos |
Description | Steep, moist shale slopes. |
Threats |
| This species has lost most of its habitat in the Elgin Valley to orchards, and only small fragments remain. Agricultural expansion continues, and remaining subpopulations are also threatened by competition from alien invasive plants and a lack of fire. Near Houw Hoek it is threatened by competition from alien invasive plants. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Askidiosperma rugosum Esterh. | EN B1ab(iii,v)+2ab(iii,v) | 2017.1 | | Askidiosperma rugosum Esterh. | Threatened | Raimondo et al. (2009) | |
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.
Linder, H.P. 1985. Conspectus of the African species of Restionaceae. Bothalia 15(3&4):387-503.
Linder, H.P. 2011. The African Restionaceae: an Interactive Key identification and description system. Version 6. http://www.systbot.uzh.ch/Bestimmungsschluessel/Restionaceae_en.html. Downloaded.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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 |
| von Staden, L. 2015. Askidiosperma rugosum Esterh. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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