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Scientific Name | Sparaxis villosa (Burm.f.) Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Synonyms | Anactorion bicolor (Thunb.) Raf.,, Gladiolus bicolor Thunb., Gladiolus villosus Burm.f., Hebea bicolor (Thunb.) Eckl., Ixia bicolor (Thunb.) Ker Gawl. t. 548 (1801a), not Ixia villosa Aiton (= Babiana villosa (Aiton) ker Gawl.), Sparaxis bicolor (Thunb.) Ker Gawl., Synnotia bicolor (Thunb.) Sweet, Synnotia villosa (Burm.f.) N.E.Br. |
Common Names | Hairy Satinflower (e) |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2020/12/30 |
Assessor(s) | L. von Staden & T. Patel |
Justification | This is a widespread species with an extent of occurrence (EOO) of 19 850 km², and an area of occupancy (AOO) of 280 km². It is still common in spite of 71% habitat loss, with at least 40 known subpopulations. It continues to decline, but is not yet in danger of extinction. It is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is scattered through the western forelands of the Western Cape, from the Cape Peninsula northward along the West Coast and through Tulbagh and Olifants River Valleys as far north as Piketberg and Citrusdal. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | It occurs in heavy, granite-derived clay soils in renosterveld, often in rocky sites but also under low shrubs where it blooms more erratically than in open habitats. |
Threats |
| Less than 30% of this species' habitat remains intact (calculate using landcover data in GIS). It has declined extensively due to habitat loss to agricultural and urban expansion, and loss continues. Most remaining subpopulations occur on small remnants, which are often degraded, and infested with unmanaged alien invasive plants. |
Population |
In spite of extensive habitat loss, this species is still very common, with recent observations indicating that it remains in at least 40 subpopulations. Some of the subpopulations are however small, with only 13 plants found in Goedehoop and less than 100 plants observed in Papergaaiberg. It continues to decline due to ongoing habitat loss and degradation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Sparaxis villosa (Burm.f.) Goldblatt | Least Concern | Raimondo et al. (2009) | |
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.
Goldblatt, P. and Manning, J.C. 2013. Systematics and biology of the Cape genus Sparaxis (Iridaceae). Strelitzia 32. South African National Biodiversity Institute, Pretoria.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity 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.
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Citation |
| von Staden, L. & Patel, T. 2020. Sparaxis villosa (Burm.f.) Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2025/05/20 |
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