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Scientific Name | Disa alticola H.P.Linder |
Higher Classification | Monocotyledons |
Family | ORCHIDACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2012/09/07 |
Assessor(s) | J.E. Victor, D. McMurtry, L. Grobler, S. Burns & B. Bytebier |
Justification | Known from five locations in high mountains around Sabie and Lydenburg. Potentially threatened by overgrazing and trampling. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Mpumalanga |
Range | Steenkampsberg and Long Tom Pass. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Long Tom Pass Montane Grassland, Steenkampsberg Montane Grassland |
Description | In seepages and wet hollows among dolerite boulders and bedrock, in short and heavily grazed grassland, 2000 m. |
Threats |
| Potentially threatened by habitat degradation as a result of overgrazing on privately owned land. |
Population |
The species has specialized habitat requirements, however, the population consists of numerous subpopulations and occurs wherever the habitat is suitable, and subpopulations tend to dominate the vegetation under suitable circumstances. (Linder 1981).
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Disa alticola H.P.Linder | VU D2 | Raimondo et al. (2009) | | Disa alticola H.P.Linder | Vulnerable | Hilton-Taylor (1997) | |
Bibliography |
Hilton-Taylor, C. 1997. Red Data List of southern African plants. 2. Corrections and additions. Bothalia 27(2):195-209.
Linder, H.P. 1981. Taxonomic studies in the Disinae. III. A revision of Disa Berg. excluding sect. Micranthae Lindl. Contributions from the Bolus Herbarium 9:1-370.
Linder, H.P. and Kurzweil, H. 1999. Orchids of southern Africa. A.A. Balkema, Rotterdam.
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 |
| Victor, J.E., McMurtry, D., Grobler, L., Burns, S. & Bytebier, B. 2012. Disa alticola H.P.Linder. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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