Taxonomy
Scientific Name
Cannomois robusta (Kunth) H.P.Linder
Higher Classification
Monocotyledons
Family
RESTIONACEAE
Synonyms
Thamnochortus robustus Kunth
National Status
Status and Criteria
Least Concern
Assessment Date
2018/06/15
Assessor(s)
L. von Staden
Justification
Cannomois robusta is widespread, common and not in danger of extinction. It has an extent of occurrence (EOO) of 43 897 km², and is listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
This species is endemic to South Africa, and occurs from the Bokkeveld Escarpment and Cederberg southwards to Du Toit's Kloof, and eastwards to the Groot Swartberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Swartberg Sandstone Fynbos, North Swartberg Sandstone Fynbos, Swartberg Altimontane Sandstone Fynbos, Cederberg Sandstone Fynbos, Winterhoek Sandstone Fynbos, North Hex Sandstone Fynbos, South Hex Sandstone Fynbos, Bokkeveld Sandstone Fynbos, Olifants Sandstone Fynbos, Nardouw Sandstone Fynbos, Western Altimontane Sandstone Fynbos, Fynbos Riparian Vegetation, Hawequas Sandstone Fynbos, Matjiesfontein Quartzite Fynbos, Swartruggens Quartzite Fynbos, Central Inland Shale Band Vegetation, Northern Inland Shale Band Vegetation
Description
It occurs along stream sides and seeps on deep sandy soils in valley bottom wetlands, very rarely in rocky outcrops.
Threats
Cannomois robusta is under threat from habitat degradation.
Population

This is a very common species, often forming extensive stands.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Cannomois saundersii H.P.LinderLeast Concern 2012.1
Cannomois saundersii H.P.LinderLeast Concern Raimondo et al. (2009)
Bibliography

Linder, H.P. 2011. New species and combinations in the African Restionaceae. South African Journal of Botany 77(2):415-424.


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.


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. 2018. Cannomois robusta (Kunth) H.P.Linder. National Assessment: Red List of South African Plants version . Accessed on 2025/04/23

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Distribution map


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