Marasmodes spinosa

Taxonomy
Scientific Name
Marasmodes spinosa S.Ortiz
Higher Classification
Dicotyledons
Family
ASTERACEAE
National Status
Status and Criteria
Endangered B1ab(iii,v)+2ab(iii,v)
Assessment Date
2012/05/06
Assessor(s)
R. Koopman, A.R. Magee, A. Marais, L. von Staden & J.C. Manning
Justification
A range-restricted species (EOO 134 km²), known from three remaining locations and declining due to ongoing habitat degradation.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Saron to Gouda.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Swartland Alluvium Fynbos, Swartland Shale Renosterveld
Description
Seasonally waterlogged clay soils.
Threats
Less than 20% of this species' lowland habitat remains intact after extensive loss to agricultural expansion. Small remnants remain scattered among crop fields, and these continue to be degraded due to spreading alien invasive plants, overgrazing and inappropriate fire management.
Population

Marasmodes spinosa was first collected in 1978, and until recently, was known from a single subpopulation of about 250 mature individuals protected within a private nature reserve (Ortiz 2009, Manning and Goldblatt 2012). In 2016, two more subpopulations were discovered on remnants of transitional alluvial fynbos-shale renosterveld between Saron and Gouda. One is a large subpopulation consisting of more than 1000 mature individuals, the second, much smaller, has only about 50 plants.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Marasmodes sp. nov. (Walton 273 NBG)EN DRaimondo et al. (2009)
Bibliography

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.


Ortiz, S. 2009. Eight new species of Marasmodes (Asteraceae, Anthemideae) from South Africa. Botanical Journal of the Linnean Society 159:330-342.


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
Koopman, R., Magee, A.R., Marais, A., von Staden, L. & Manning, J.C. 2012. Marasmodes spinosa S.Ortiz. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/11/20

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Distribution map

© R. Koopman

© R. Koopman

© I. Ebrahim


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