Lachenalia summerfieldii

Taxonomy
Scientific Name
Lachenalia summerfieldii G.D.Duncan
Higher Classification
Monocotyledons
Family
HYACINTHACEAE
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2014/04/03
Assessor(s)
L. von Staden
Justification
Plants at one known location are potentially threatened by overgrazing.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape
Range
Roggeveld Plateau north of Middelpos.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Roggeveld Karoo
Description
Seasonally moist, stony red doleritic clay.
Threats
The only known subpopulation is subjected to severe overgrazing, preventing seed set in flowering individuals (Duncan 2012).
Population

The species is currently known from a single, localized subpopulation. More surveys are needed to determine the full extent of the population, but it is most likely a narrow endemic to the Roggeveld Escarpment, an area rich in range-restricted endemics. Monitoring is also needed to determine whether grazing is leading to a population decline or not.


Population trend
Unknown
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lachenalia summerfieldii G.D.DuncanVU D22014.1
Bibliography

Duncan, G.D. 2012. The genus Lachenalia. Kew Publishing, Royal Botanic Gardens, Kew.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.


Citation
von Staden, L. 2014. Lachenalia summerfieldii G.D.Duncan. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2019/08/24

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Distribution map


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