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Scientific Name | Lachenalia mediana Jacq. subsp. mediana |
Higher Classification | Monocotyledons |
Family | HYACINTHACEAE |
Synonyms | Lachenalia mediana Jacq. var. mediana |
National Status |
Status and Criteria | Vulnerable B1ab(ii,iii,iv,v) |
Assessment Date | 2019/11/01 |
Assessor(s) | D. Raimondo & N.A. Helme |
Justification | This species has an extent of occurrence (EOO) of less than 7700 km², and is a lowland species that occurs on flat loams and clays. Over 80% of its habitat has been transformed in the past 80 years. Remaining subpopulations are severely fragmented, occurring on small remnants of renosterveld isolated from one another by intervening wheat and vineyard agricultural lands and by urban suburbs in the greater Cape Town area. Habitat loss to urban development, crop cultivation and invasive alien plants is continuing. It is therefore assessed as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs in Vredenburg and Porterville to Gordon's Bay. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Western Ruens Shale Renosterveld, Swartland Granite Renosterveld, Saldanha Granite Strandveld, Swartland Shale Renosterveld, Peninsula Shale Renosterveld, Boland Granite Fynbos |
Description | Plants grow in renosterveld on clay flats. |
Threats |
| Agriculture is a severe past, moderate and ongoing threat. Grazing is a severe ongoing threat. Urban development is a moderate, past and ongoing while alien grasses is moderate and ongoing. Quarrying is also a threat. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lachenalia mediana Jacq. var. mediana | VU B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
Duncan, G.D. 2012. The genus Lachenalia. Kew Publishing, Royal Botanic Gardens, Kew.
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.
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.
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Citation |
| Raimondo, D. & Helme, N.A. 2019. Lachenalia mediana Jacq. subsp. mediana. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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