Taxonomy
Scientific Name
Passerina burchellii Thoday
Higher Classification
Dicotyledons
Family
THYMELAEACEAE
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2019/03/20
Assessor(s)
L. von Staden
Justification
This range-restricted species (EOO 189 km²) occurs at five locations and is potentially threatened by competition from alien invasive plants.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Riviersonderend Mountains and Stettynsberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Sonderend Sandstone Fynbos, North Sonderend Sandstone Fynbos, Hawequas Sandstone Fynbos
Description
Mountain summits, occurs in crevices in rocky sandstone outcrops on upper southwest-facing slopes.
Threats
Density of alien invasive pines on the southern slopes of the Riviersonderend Mountains above Genadendal and Greyton has significantly increased over the past 15 years (L. von Staden pers. obs.), and scattered individuals are now establishing on the northern slopes of Jonaskop. Invasive clearing is urgently needed to prevent native species from being outcompeted.
Population

This species is common along the summit of the Riviersonderend Mountains in the Genadendal and Villiersdorp districts (Bredenkamp and Van Wyk 2003).


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Passerina burchellii ThodayRare Raimondo et al. (2009)
Passerina burchellii ThodayVU D2Victor (2002)
Passerina burchellii ThodayRare Hilton-Taylor (1996)
Passerina burchellii ThodayRare Hall et al. (1980)
Bibliography

Bredenkamp, C.L. and Van Wyk, A.E. 2003. Taxonomy of the genus Passerina. Bothalia 33(1):59-98.


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.


Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.


Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. 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.


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.


Citation
von Staden, L. 2019. Passerina burchellii Thoday. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/07/10

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Distribution map


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