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Scientific Name | Tromotriche herrei (Nel) Bruyns |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
Synonyms | Stapelia herrei Nel, Stapelia neliana A.C.White & B.Sloane, Tridentea herrei (Nel) L.C.Leach |
National Status |
Status and Criteria | Near Threatened D2 |
Assessment Date | 2015/06/04 |
Assessor(s) | D. Raimondo & L. von Staden |
Justification | A rare, localized species, occurring at between six and eight locations and potentially threatened by habitat degradation due to overgrazing. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld, from Helskloof to Vioolsdrif and Steinkopf. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Umdaus Mountains Succulent Shrubland, Central Richtersveld Mountain Shrubland, Southern Nababiepsberge Mountain Desert, Kahams Mountain Desert |
Description | Quartz gravel slopes and patches. |
Threats |
| This species is possibly threatened by habitat degradation due to overgrazing, particularly around Kubus and Eksteenfontein. It is dependent on shelter from nurse-shrubs during its early development (Bruyns 2005), but severe overstocking has led to a loss of shrub cover in parts of the Richtersveld. It is possibly also threatened by collecting for the succulent trade, but plants are easily grown from cuttings, reducing the need to remove whole mature individuals from the wild. |
Population |
This is a rare species, occurring in small, scattered subpopulations.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Tromotriche herrei (Nel) Bruyns | NT D2 | 2015.1 | | Tromotriche herrei (Nel) Bruyns | Rare | Raimondo et al. (2009) | | Tromotriche herrei (Nel) Bruyns | Rare/Vulnerable | Hilton-Taylor (1996) | | Stapelia neliana A.C.White & B.Sloane | Indeterminate | Hall et al. (1980) | |
Bibliography |
Bruyns, P.V. 1995. A re-assessment of the genera Tridentea Haw. and Tromotriche Haw. South African Journal of Botany 61(4):180-208.
Bruyns, P.V. 2005. Stapeliads of southern Africa and Madagascar. (Vol. 2, pp. 331-606). Umdaus Press, Pretoria.
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Raimondo, D. & von Staden, L. 2015. Tromotriche herrei (Nel) Bruyns. National Assessment: Red List of South African Plants version . Accessed on 2025/05/31 |
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