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Scientific Name | Trachyandra bulbosa Boatwr. & J.C.Manning |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Critically Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2022/05/27 |
Assessor(s) | H. Mtshali |
Justification | This Namaqualand endemic has a highly restricted range, with an area of occupancy (AOO) of 4 km², and the population is very small and localised. It is threatened by severe overgrazing from livestock. The population trend is inferred to be declining. It is therefore listed as Critically Endangered under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species has a localised distribution range near the summit of Bulletrap Pass in Namaqualand, Northern Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Shale Shrubland |
Description | It is confined to high altitudes, on south slopes among rocks. |
Threats |
| This species is threatened by ongoing degradation due to overgrazing, but its preference for rocky soils may offer it some protection against erosion and trampling. |
Population |
This species has a highly restricted distribution. It is known from a single collection and about 100 individuals were observed. The population trend is not known, but is inferred to be declining due to severe current land-use (livestock overgrazing).
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Population trend | Decreasing |
Bibliography |
Boatwright, J.S. and Manning, J.C. 2013. Two new species of Trachyandra sect. Liriothamnus (Xanthorrhoeaceae, Asphodeloideae) from the Western and Eastern Cape Provinces of South Africa. Phytotaxa 155(1):59-65.
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Citation |
| Mtshali, H. 2022. Trachyandra bulbosa Boatwr. & J.C.Manning. National Assessment: Red List of South African Plants version . Accessed on 2024/12/07 |
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