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Scientific Name | Disa atrorubens Schltr. |
Higher Classification | Monocotyledons |
Family | ORCHIDACEAE |
Synonyms | Monadenia atrorubens (Schltr.) Rolfe, Monadenia ophrydea in sense of Kraenzl. (1900) (in part) |
National Status |
Status and Criteria | Near Threatened B1ab(iii) |
Assessment Date | 2012/08/31 |
Assessor(s) | L. von Staden, B. Bytebier, W.R. Liltved, E.G.H. Oliver, T.A. Oliver & D. Raimondo |
Justification | EOO 16 116 km², known to be extant at ± 10 locations, however this is a cryptic species flowering only after fire, and is therefore likely to be under-collected. There is a continuing decline due to crop cultivation, urban expansion and encroachment by invasive alien plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | Cape Peninsula and Cape Hangklip to Nieuwoudtville. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Peninsula Sandstone Fynbos, Piketberg Sandstone Fynbos, Overberg Sandstone Fynbos, Kogelberg Sandstone Fynbos, Bokkeveld Sandstone Fynbos, Elim Ferricrete Fynbos, Hangklip Sand Fynbos, Atlantis Sand Fynbos |
Description | Seasonally wet areas on sandy flats, sea level to 1000 m. |
Threats |
| Alien invasive wattles threaten lowland subpopulations around Pella and Mamre and the subpopulations at Betty's Bay. Agriculture has probably led to decline of populations around Clanwilliam and Nieuwoudtville. Urban expansion has led to past declines in and around Cape Town. |
Population |
Population trend | Decreasing |
Notes |
| Flowers after fires. This species is easily confused with D. ophrydea (Linder 1981). |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Disa atrorubens Schltr. | VU B1ab(iii) | 2012.1 | | Disa atrorubens Schltr. | VU B1ab(iii) | Raimondo et al. (2009) | |
Bibliography |
Liltved, W.R. and Johnson, S.D. Unpublished. The Cape Orchids - Wild orchids of the Cape Floral Kingdom.
Linder, H.P. 1981. Taxonomic studies in the Disinae. V. A revision of the genus Monadenia. Bothalia 13(3&4):339-363.
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 |
| von Staden, L., Bytebier, B., Liltved, W.R., Oliver, E.G.H., Oliver, T.A. & Raimondo, D. 2012. Disa atrorubens Schltr. National Assessment: Red List of South African Plants version . Accessed on 2025/05/14 |
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