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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.
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lachenalia summerfieldii G.D.Duncan | VU D2 | 2014.1 | |
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.
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Citation |
| von Staden, L. 2014. Lachenalia summerfieldii G.D.Duncan. National Assessment: Red List of South African Plants version . Accessed on 2025/04/23 |
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