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Scientific Name | Adenogramma littoralis Adamson |
Higher Classification | Dicotyledons |
Family | MOLLUGINACEAE |
National Status |
Status and Criteria | Data Deficient - Insufficient Information |
Assessment Date | 2023/02/22 |
Assessor(s) | L. von Staden |
Justification | A widespread, but very poorly known species. It has an extent of occurrence (EOO) of 16 344 km²), and is possibly threatened by habitat loss and degradation, but due to a lack of recent field observations nothing is known about its population size, structure and trends. Therefore its risk of extinction cannot be assessed at present. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | This species is endemic to South Africa, and is found in coastal areas from Hondeklipbaai in Namaqualand to False Bay. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Coastal Duneveld, Overberg Dune Strandveld, Cape Seashore Vegetation, Namaqualand Seashore Vegetation |
Description | It occurs in deep sands at low altitudes, often near the sea. |
Threats |
| The threats to this taxon are not known. It is probably threatened by habitat loss to mining on the Namaqualand coast, where extensive, highly destructive open-cast mining has led to the loss and degradation of large areas of coastal duneveld. Further south it is likely to be threatened by habitat loss to coastal development. |
Population |
This species is known from only a handful of historical records, and was last observed in 1952. Adenogramma species are cryptic and very easily overlooked, but the lack of recent records are concerning. Field surveys are needed to relocate it in the wild. Historical records suggest that it has a fairly wide distribution range, but based on available data, the number of extant subpopulations, population size and trends cannot be estimated.
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Population trend | Unknown |
Conservation |
| This species has not been recorded from any formally protected areas. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Adenogramma littoralis Adamson | DDD | 2017.1 | | Adenogramma littoralis Adamson | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Adamson, R.S. 1955. The South African species of Aizoaceae I. Adenogramma and Polpoda. Journal of South African Botany 21:83-95.
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity Institute, Pretoria.
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 |
| von Staden, L. 2023. Adenogramma littoralis Adamson. National Assessment: Red List of South African Plants version . Accessed on 2024/09/15 |
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