|
Scientific Name | Crassula alstonii Marloth |
Higher Classification | Dicotyledons |
Family | CRASSULACEAE |
Synonyms | Crassula deltoidea in sense of Schönland, not of Thunb. (misapplied name) |
Common Names | Bulbees (a) |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2018/06/05 |
Assessor(s) | P.A. Manyama & D.A. Kamundi |
Justification | Crassula alstonii is a range-restricted species, with an extent of occurrence (EOO) of 1 912 km². It is fairly common, and has no severe threats, and is therefore not suspected to be in danger of extinction. It is listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to a small area in northern Namaqualand and the southern Richtersveld in South Africa, from Lekkersing to Komaggas. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Strandveld, Southern Richtersveld Inselberg Shrubland, Namaqualand Heuweltjieveld, Namaqualand Klipkoppe Shrubland |
Description | It occurs on gentle slopes of low hills, usually in areas with quartzite gravel. |
Threats |
| Crassula alstonii is threatened by habitat loss to mining at two known locations, but otherwise there are no severe threats to this species. |
Population |
This species is a localized, but locally common habitat specialist.
|
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Crassula alstonii Marloth | 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.
Tölken, H.R. 1985. Crassulaceae. In: O.A. Leistner (ed). Flora of southern Africa 14,1:1-244. Botanical Research Institute, Pretoria.
|
Citation |
| Manyama, P.A. & Kamundi, D.A. 2018. Crassula alstonii Marloth. National Assessment: Red List of South African Plants version . Accessed on 2025/05/18 |
Comment on this assessment
