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Scientific Name | Disa biflora (L.f.) Druce |
Higher Classification | Monocotyledons |
Family | ORCHIDACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2016/06/28 |
Assessor(s) | L. von Staden, W.R. Liltved, E.G.H. Oliver & T.A. Oliver |
Justification | EOO 24 138 km². It has probably declined extensively across its range due to crop cultivation. Urban expansion has led to this species going extinct on the Cape Peninsula. In the northern parts of the range, there is ongoing expansion of Rooibos tea cultivation on sandy areas. The timing and extent of decline and generation length are not known. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | Western and Northern Cape, from Hangklip to Nieuwoudtville. Extinct on the Cape Peninsula. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | Lowland, sand plains and alluvial sand derived from Table Mountain Sandstone. Mostly found below 900 m, but on drier edges of range it has also been collected up to 1500 m. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Disa satyrioides (L.) Bytebier | Declining | 2012.1 | | Schizodium satyrioides (L.) Garay | Declining | 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Liltved, W.R. and Johnson, S.D. Unpublished.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. II. A revision of the genus Schizodium Lindl. Journal of South African Botany 47(3):339-371.
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., Liltved, W.R., Oliver, E.G.H. & Oliver, T.A. 2016. Disa biflora (L.f.) Druce. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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