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Scientific Name | Trachyandra aridimontana J.C.Manning |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2020/11/24 |
Assessor(s) | D. Raimondo & P.C.V. Van Wyk |
Justification | Trachyandra aridimontana is a range-restricted Richtersveld endemic, known from three locations. It has an extent of occurrence (EOO) of 405 km². The majority of the subpopulations are severely threatened by livestock overgrazing and trampling. Illegal collecting for the horticultural trade is also causing decline. It is therefore listed as Endangered under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to South Africa, and is found in the Richtersveld, from Koedoesberg to Kodaspiek. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Central Richtersveld Mountain Shrubland, Western Gariep Hills Desert, Noms Mountain Desert |
Description | It is wedged among rocks and on stony west-facing slopes. |
Threats |
| Trachyandra aridimontana is threatened by illegal collecting for the horticultural trade, a whole subpopulation was removed within the past five years by collectors. Livestock overgrazing and trampling is also a severe threat throughout this species range - plants are browsed down to small stumps and are unlikely to survive in the long term. |
Population |
Subpopulations are typically small.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Trachyandra aridimontana J.C.Manning | EN B1ab(iii,v)+2ab(iii,v) | 2015.1 | | Trachyandra aridimontana J.C.Manning | Rare | Raimondo et al. (2009) | | Trachyandra aridimontana J.C.Manning | Rare | Hilton-Taylor (1996) | |
Bibliography |
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Manning, J.C. 1990. A new species of Trachyandra section Liriothamnus (Asphodelaceae) from the Richtersveld. South African Journal of Botany 56(1):1-5.
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. & Van Wyk, P.C.V. 2020. Trachyandra aridimontana J.C.Manning. National Assessment: Red List of South African Plants version . Accessed on 2024/09/08 |
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