Taxonomy
Scientific Name
Euchaetis avisylvana I.Williams
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Vulnerable A2ace; D2
Assessment Date
2005/02/03
Assessor(s)
J.E. Victor & D. Raimondo
Justification
A population reduction of at least 30% is estimated based on the local extinction of 30% of known subpopulations due to infrastructure development and afforestation in the past 30 years (generation length 10 years). AOO<20 km², five remaining locations are potentially threatened inappropriate fire management and alien plant invasion.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
South slopes of Langeberg from Tradouw Pass eastwards for 17 km.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Langeberg Sandstone Fynbos, Swellendam Silcrete Fynbos
Description
Rocky or stony places in well-drained acid soil derived from Table Mountain Sandstone.
Threats
Habitat degradation, Habitat loss, Invasive Alien Species (direct effects)
Population
Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Euchaetis avisylvana I.WilliamsVU A2ace; D2Raimondo et al. (2009)
Euchaetis avisylvana I.WilliamsVU A1aceD2Victor (2002)
Euchaetis avisylvana I.WilliamsRare Hilton-Taylor (1996)
Euchaetis avisylvana I.WilliamsEndangered Hall et al. (1980)
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.


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.


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
Victor, J.E. & Raimondo, D. 2005. Euchaetis avisylvana I.Williams. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map


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