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Scientific Name | Schlechteranthus holgatensis Klak |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
National Status |
Status and Criteria | Vulnerable D1+2 |
Assessment Date | 2016/10/25 |
Assessor(s) | C. Klak, P.V. Bruyns & L. von Staden |
Justification | This species is known from a single subpopulation of 500-1000 mature individuals, and is potentially threatened by habitat degradation due to overgrazing. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld, Holgat River near Lekkersing. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Lekkersing Succulent Shrubland |
Description | Schist with a cover of quartz gravel, 270-340 m. |
Threats |
| Field observations indicate no severe threats to this species (Klak and Bruyns 2016). Large areas of the Richtersveld is severely overgrazed, and in places, overgrazing and trampling has led to a loss of species diversity and shrub cover. Habitat degradation due to overgrazing is a potential threat to this species. |
Population |
S. holgatensis is known from a single locality. The population covers a total area (area of occupancy, AOO) of less than 5 ha. The total number of plants is estimated at between 500 and 1000 (Klak and Bruyns 2016). There are currently no severe threats to the population, and it is therefore inferred to be stable. The species occurs in a remote area that is botanically still relatively poorly explored, and it is possible that other, still undiscovered subpopulations exist.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Schlechteranthus holgatensis Klak | VU D1+2 | 2017.1 | |
Bibliography |
Klak, C. and Bruyns, P. 2016. Expansion of Schlechteranthus (Ruschioideae, Aizoaceae) to include Polymita, with a new species from Namaqualand, South Africa. South African Journal of Botany 103:70-77.
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Citation |
| Klak, C., Bruyns, P.V. & von Staden, L. 2016. Schlechteranthus holgatensis Klak. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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