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Scientific Name | Haworthiopsis longiana (Poelln.) G.D.Rowley |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
Synonyms | Haworthia longiana Poelln., Haworthia longiana Poelln. var. albinota G.G.Sm. |
National Status |
Status and Criteria | Endangered A2bc; B1ab(iii)+2ab(iii) |
Assessment Date | 2007/04/17 |
Assessor(s) | J.H. Vlok & D. Raimondo |
Justification | EOO 3500 km², AOO 600 km². More than 50% of its habitat has been lost to intense citrus and other irrigated crop cultivation. Habitat loss commenced in the 1960s, which is less than three generations of this long-lived species (generation length 20 years). Degradation of remnant habitat by grazing practises is currently taking place. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | Sundays and Gamtoos River Valleys. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Kouga Grassy Sandstone Fynbos |
Description | Valley bottoms and lower slopes of hills in rocky, loamy soils. |
Threats |
| At least 50% of this species' habitat was lost to agricultural expansion, predominantly citrus cultivation since the 1960s. Remaining subpopulations are threatened by heavy grazing pressure due to overstocking of small fragments of remaining natural vegetation. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Haworthiopsis longiana (Poelln.) G.D.Rowley | EN A2bc; B1ab(iii)+2ab(iii) | 2014.1 | | Haworthia longiana Poelln. | EN A2bc; B1ab(iii)+2ab(iii) | Raimondo et al. (2009) | |
Bibliography |
Bayer, M.B. 1999. Haworthia Revisited: A revision of the genus. Umdaus Press, Hatfield.
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.
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 |
| Vlok, J.H. & Raimondo, D. 2007. Haworthiopsis longiana (Poelln.) G.D.Rowley. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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