|
Scientific Name | Roosia grahambeckii (Van Jaarsv.) Van Jaarsv. |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Esterhuysenia grahambeckii Van Jaarsv. |
National Status |
Status and Criteria | Critically Rare |
Assessment Date | 2013/04/25 |
Assessor(s) | L. von Staden |
Justification | A range-restricted (EOO <35 km²) habitat specialist which is not threatened. It is therefore listed under the IUCN 3.1. criteria as Least Concern but is nationally recognised as Critically Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs in Rooiberg between Worcester and Robertson. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Breede Quartzite Fynbos |
Description | Plants grow on south-facing, upper quartzitic cliffs. |
Threats |
| It has no known threats. This species is protected within a private conservancy and its habitat is undisturbed. |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Esterhuysenia grahambeckii Van Jaarsv. | Critically Rare | 2014.1 | |
Bibliography |
Van Jaarsveld, E.J. 2011. Esterhuysenia grahambeckii, a new rare species in the Aizoaceae (Mesembryanthema, Ruschioideae) from the Rooiberg, Western Cape,South Africa. Bradleya 29:43-50.
Van Jaarsveld, E.J. 2017. Roosia: a new genus in the Aizoaceae from the Western Cape, South Africa. Bradleya 35:150-158.
|
Citation |
| von Staden, L. 2013. Roosia grahambeckii (Van Jaarsv.) Van Jaarsv. National Assessment: Red List of South African Plants version . Accessed on 2025/05/03 |
Comment on this assessment
