Taxonomy
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.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Klein Drakenstein and Wemmershoek mountains south of Du Toit's Kloof Pass.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Hawequas Sandstone Fynbos
Description
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.DahlgrenRare Raimondo et al. (2009)
Stylapterus sulcatus R.DahlgrenRare 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.


Citation
von Staden, L. 2017. Stylapterus sulcatus R.Dahlgren. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/10/20

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Distribution map


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