|
Scientific Name | Disperis purpurata Rchb.f. subsp. pallescens Bruyns |
Higher Classification | Monocotyledons |
Family | ORCHIDACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2014/08/11 |
Assessor(s) | L. von Staden, W.R. Liltved, E.G.H. Oliver & T.A. Oliver |
Justification | A range-restricted taxon (EOO 10 km²), known from two locations. Potentially threatened by livestock grazing and trampling. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Central Richtersveld Mountain Shrubland |
Description | High altitudes in enclaves of Stinkfonteinberge Quartzite Fynbos. Often found growing alongside or under bushes of small Pteronia species. |
Threats |
| This species occurs mostly on upper slopes, where the grazing pressure is currently low. However, as rangelands on the plains and closer to settlements are becoming increasingly degraded, herders are starting to move their livestock into the mountains in search of grazing. This subspecies is potentially vulnerable to increasing grazing pressure. |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Disperis purpurata Rchb.f. subsp. pallescens Bruyns | VU D2 | Raimondo et al. (2009) | | Disperis purpurata Rchb.f. subsp. pallescens Bruyns | VU D2 | Victor (2002) | | Disperis purpurata Rchb.f. subsp. pallescens Bruyns | Rare | Hilton-Taylor (1996) | |
Bibliography |
Bruyns, P.V. 1989. The Orchiaceae of the Richtersveld. South African Journal of Botany 55(5):5492-5497.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Liltved, W.R. and Johnson, S.D. Unpublished. The Cape Orchids - Wild orchids of the Cape Floral Kingdom.
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.
Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.
|
Citation |
| von Staden, L., Liltved, W.R., Oliver, E.G.H. & Oliver, T.A. 2014. Disperis purpurata Rchb.f. subsp. pallescens Bruyns. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
Comment on this assessment
