Threadleaf Brightfig

Taxonomy
Scientific Name
Lampranthus filicaulis (Haw.) N.E.Br.
Higher Classification
Dicotyledons
Family
AIZOACEAE
Synonyms
Mesembryanthemum filicaule Haw.
Common Names
Threadleaf Brightfig (e)
National Status
Status and Criteria
Vulnerable A2c
Assessment Date
2006/05/10
Assessor(s)
N.A. Helme, C. Klak & D. Raimondo
Justification
A population reduction of 30% is suspected to have occurred over the past 45 years (generation length 15-20 years), based on the rate of population decline observed in the past 10 years. Crop cultivation has caused extensive habitat loss in the past, and housing development is causing an ongoing loss of remaining habitat.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Tulbagh to Cape Flats to Bot River.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Breede Alluvium Renosterveld, Swartland Alluvium Fynbos, Lourensford Alluvium Fynbos, Atlantis Sand Fynbos, Cape Flats Sand Fynbos, Hangklip Sand Fynbos, Boland Granite Fynbos, Peninsula Granite Fynbos, Breede Alluvium Fynbos, Breede Quartzite Fynbos, Langebaan Dune Strandveld, Swartland Silcrete Renosterveld, Ruens Silcrete Renosterveld, Swartland Granite Renosterveld, Peninsula Shale Renosterveld, Western Ruens Shale Renosterveld, Breede Shale Renosterveld, Swartland Shale Renosterveld, Saldanha Granite Strandveld, Breede Shale Fynbos
Description
Seasonally wet alluvial sands overlaying koffieklip.
Threats
Agriculture was listed as a severe threat in the past and this is still ongoing around Darling. Housing developments are the principal ongoing threat to this species, at all locations. There has been an observed loss of subpopulations at Uitkamp, Kranskop, Rondebosch common and Harmony flats which has lead to >10% loss of total population in past 10 years, and >30% loss in past 30 years. This species is a clonal species that is long lived survives >10 years. Invasive alien plant species are a severe past, present and future threat at majority of localities.
Population

The largest subpopulation is at Kranskop, but doesn't contain more than 90% of individuals.


Population trend
Decreasing
Conservation
On Rondebosch common, which is not truly conserved.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lampranthus filicaulis (Haw.) N.E.Br.VU A2cRaimondo et al. (2009)
Lampranthus filicaulis (Haw.) N.E.Br.Vulnerable Hilton-Taylor (1996)
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.


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
Helme, N.A., Klak, C. & Raimondo, D. 2006. Lampranthus filicaulis (Haw.) N.E.Br. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map

© C. Paterson-Jones

© I. Ebrahim

© I. Ebrahim


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