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Scientific Name | Stomatium difforme L.Bolus |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
National Status |
Status and Criteria | Data Deficient - Insufficient Information |
Assessment Date | 2019/11/25 |
Assessor(s) | D. Raimondo |
Justification | Stomatium difforme is a species endemic to the southern Karoo. It has an extent of occurrence (EOO) of 2140 km², and was historically recorded from five locations. It has not been collected since 1935. This species is likely to have declined as a result of livestock overgrazing. It may however also be under collected as members of the genus are difficult to identify. This species therefore qualifies as Data Deficient and targeted field surveys are required to determine its current risk of extinction. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is endemic to South Africa, and is found from Sutherland to Laingsburg. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Western Little Karoo, Koedoesberge-Moordenaars Karoo, Tanqua Escarpment Shrubland, Eastern Upper Karoo, Northern Upper Karoo, Western Upper Karoo, Matjiesfontein Shale Renosterveld, Central Mountain Shale Renosterveld |
Description | This species grows in pockets of shallow gravel on bare dolerite sheets. |
Threats |
| Stomatium difforme is likely to have declined as a result of livestock overgrazing and trampling. |
Population |
There is no information available on the population of this species.
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Stomatium difforme L.Bolus | DDD | 2020.1 | | Stomatium difforme L.Bolus | Least Concern | Raimondo et al. (2009) | |
Bibliography |
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Raimondo, D. 2019. Stomatium difforme L.Bolus. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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