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Scientific Name | Macrostylis hirta E.Mey. ex Sond. |
Higher Classification | Dicotyledons |
Family | RUTACEAE |
Synonyms | Macrostylis hirta E.Mey. ex Sond. var. glabrata Sond. |
National Status |
Status and Criteria | Vulnerable B1ab(ii,iii,v)+2ab(ii,iii,v) |
Assessment Date | 2010/09/02 |
Assessor(s) | N.A. Helme, D. Raimondo & L. von Staden |
Justification | EOO 188 km², AOO <188 km², between six and eight remaining locations continue to decline due to ongoing habitat loss to rooibos tea and potato cultivation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Paleisheuwel to Graafwater. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Graafwater Sandstone Fynbos |
Description | Well-drained sandy soils, occurring in deep sands as well as shallow rocky soils. |
Threats |
| Expansion of potato and rooibos tea cultivation has caused extensive recent habitat loss to subpopulations occurring in deep sandy soils. These subpopulations now remain on small fragments surrounded by crop fields where they are in immediate danger of extirpation by further agricultural expansion. Subpopulations occurring on rocky slopes are however protected from cultivation. This palatable species is also potentially threatened by overgrazing. |
Population |
Plants tend to be locally common, and habitat loss is estimated to have caused a population reduction of 15-20% in the past 30 years, and continues to cause slow decline of less than 5% per year.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Macrostylis hirta E.Mey. ex Sond. | EN B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) | Raimondo et al. (2009) | | Macrostylis hirta E.Mey. ex Sond. | VU D2 | Victor (2002) | | Macrostylis hirta E.Mey. ex Sond. | Rare | Hilton-Taylor (1996) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
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.
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.
Williams, I. 1982. Studies in the genera of the Diosmeae (Rutaceae): 13. A revision of the genus Acmadenia. Journal of South African Botany 48(2):169-240.
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Citation |
| Helme, N.A., Raimondo, D. & von Staden, L. 2010. Macrostylis hirta E.Mey. ex Sond. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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