Askidiosperma rugosum

Taxonomy
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
Elgin Shale Fynbos, Western Coastal Shale Band Vegetation
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.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.


Citation
von Staden, L. 2015. Askidiosperma rugosum Esterh. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/10/22

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Distribution map


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