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Scientific Name | Thesium fallax Schltr. |
Higher Classification | Dicotyledons |
Family | SANTALACEAE |
National Status |
Status and Criteria | Data Deficient - Insufficient Information |
Assessment Date | 2016/11/16 |
Assessor(s) | L. von Staden |
Justification | A range-restricted and poorly known species that is possibly threatened by competition from alien invasive plants. It was last recorded in 1896, and not enough is known about its distribution range, population status and trends to determine its risk of extinction. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Mountains between Bredasdorp, Napier, and Elim. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | Uncertain, possibly sandstone slopes. |
Threats |
| This species is possibly threatened by competition from alien invasive plants. Large areas of the Elandskloof and Bredasdorp Mountains are infested with alien invasive plants. |
Population |
This species is known from only a few, very old collections with imprecise locality details. It appears to be endemic to the Bredasdorp and Elandskloof mountains (Manning and Goldblatt 2012), but it may be more widespread and overlooked elsewhere. The genus Thesium is very poorly known, and in need of taxonomic revision. Confusion with other taxa may therefore also explain the lack of recent records.
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Thesium fallax Schltr. | DDD | 2017.1 | | Thesium fallax Schltr. | EN B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | Raimondo et al. (2009) | | Thesium fallax Schltr. | Insufficiently Known | Hilton-Taylor (1996) | |
Bibliography |
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.
Hill, A.W. 1915. Santalaceae. In: W.T. Thiselton-Dyer (ed). Flora Capensis V Section II (Thymeleaceae-Ceratophylleae):135-212. L. Reeve & Co., Ltd., Ashford.
Hill, A.W. 1915. The Genus Thesium in South Africa, with a key and descriptions of new species. Bulletin of Miscellaneous Information (Royal Gardens, Kew) 1915(1):1-43.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
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.
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Citation |
| von Staden, L. 2016. Thesium fallax Schltr. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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