Taxonomy
Scientific Name
Othonna cremnophila B.Nord. & Van Jaarsv.
Higher Classification
Dicotyledons
Family
ASTERACEAE
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2015/05/21
Assessor(s)
L. von Staden
Justification
A localized habitat specialist (EOO 40 km²), occurring at two to three locations and potentially threatened by overgrazing and collection for the succulent trade.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape
Range
Central Richtersveld.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Rosyntjieberg Succulent Shrubland
Description
South-facing quartzite cliffs, 700-1000 m.
Threats
Severe overstocking of livestock in the Richtersveld is causing ongoing degradation, loss of vegetation cover, and species diversity due to overgrazing and trampling. Most of this species' habitat is inaccessible to livestock, but where plants are accessible, they become stunted by heavy grazing (Van Jaarsveld and Nordenstam 2005). It is popular in horticulture, but slow growing, and therefore potentially threatened by collectors removing plants from the wild for the succulent trade.
Population
Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Othonna cremnophila B.Nord. & Van Jaarsv.VU D22015.1
Othonna cremnophila B.Nord. & Van Jaarsv.Least Concern Raimondo et al. (2009)
Bibliography

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.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.


Van Jaarsveld, E. and Nordenstam, B. 2005. Othonna cremnophila, a new species of the Asteraceae-Senecioneae from the Richtersveld, Northern Cape Province, South Africa. Aloe 42(1&2):4-7.


Citation
von Staden, L. 2015. Othonna cremnophila B.Nord. & Van Jaarsv. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2022/05/24

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Distribution map


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