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Scientific Name | Haworthiopsis nigra (Haw.) G.D.Rowley |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2016/11/10 |
Assessor(s) | D. Raimondo & L. von Staden |
Justification | Haworthiopsis nigra is widespread and not in danger of extinction. It is listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape, Northern Cape, Western Cape |
Range | This species is endemic to South Africa, and is widespread across the Great Karoo, extending southwards to Grahamstown and East London and eastwards to Queenstown. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Bhisho Thornveld, Eastern Lower Karoo, Tsomo Grassland, Southern Karoo Riviere |
Description | It is sheltered among the base of shrubs on karoo plains, as well as rocky ridges, outcrops and cliffs. |
Threats |
| There are no significant threats to this taxon at present, parts of its range may be impacted in the future by shale gas development. |
Population |
There is no information available on the population of Haworthiopsis nigra.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Haworthiopsis nigra (Haw.) G.D.Rowley | Least Concern | 2014.1 | | Haworthia nigra (Haw.) Baker var. nigra | Least Concern | Raimondo et al. (2009) | | Haworthia nigra (Haw.) Baker var. diversifolia (Poelln.) Uitewaal | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Bayer, M.B. 1982. The new Haworthia handbook. National Botanical Gardens of South Africa.
Bayer, M.B. 1993. Salter's revision of South African Oxalis (Oxalidaceae) and some new combinations. Herbertia 48(1-2):58-69.
Bredenkamp, C. In prep. Conspectus of the flora of the Eastern cape. Strelitzia.
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.
Rowley, G.D. 2013. Generic concepts in the Alooideae. Part 3 - The phylogenetic story. Alsterworthia International Special Issue 10:1-6.
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Citation |
| Raimondo, D. & von Staden, L. 2016. Haworthiopsis nigra (Haw.) G.D.Rowley. National Assessment: Red List of South African Plants version . Accessed on 2025/05/18 |
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