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Scientific Name | Stylapterus sulcatus R.Dahlgren |
Higher Classification | Dicotyledons |
Family | PENAEACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2017/07/17 |
Assessor(s) | L. von Staden |
Justification | A rare and localized habitat specialist (EOO <10 km²) that is potentially threatened by competition from alien invasive plants. It therefore qualifies as Vulnerable under criterion D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs in Klein Drakenstein and Wemmershoek mountains south of Du Toit's Kloof Pass. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Hawequas Sandstone Fynbos |
Description | Plants grow in streamsides on rocky upper sandstone slopes. |
Threats |
| This species is potentially threatened by competition from alien invasive plants, which are particularly prone to spreading along streams and drainage lines. The lower slopes of the Klein Drakenstein Mountains above the western end of Du Toit's Kloof Pass have been planted with timber plantations, a potential source of invasive seedlings. Elsewhere in Du Toit's Kloof and around Bain's Kloof unmanaged alien invasive plants have already caused the decline of other Stylapterus species. |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Stylapterus sulcatus R.Dahlgren | VU D2 | 2020.1 | | Stylapterus sulcatus R.Dahlgren | Rare | Raimondo et al. (2009) | | Stylapterus sulcatus R.Dahlgren | Rare | Hilton-Taylor (1996) | |
Bibliography |
Dahlgren, R. 1967. Studies on Penaeaceae I. Systematics and gross morphology of the genus Stylapterus A. Juss. Opera Botanica 15:1-40.
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.
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Citation |
| von Staden, L. 2017. Stylapterus sulcatus R.Dahlgren. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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