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Scientific Name | Berkheya viscosa (DC.) Hutch. |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
Synonyms | Stobaea viscosa DC. |
Common Names | Dissel (a), Taaidissel (a) |
National Status |
Status and Criteria | Rare |
Assessment Date | 2018/05/23 |
Assessor(s) | L. von Staden |
Justification | Berkheya viscosa is a rare, range-restricted species, with an extent of occurrence (EOO) of 471 km². It has no severe threats, and is therefore not suspected to be in danger of extinction. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs in the northern Cederberg, Olifants River Valley and Piketberg in the Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Piketberg Sandstone Fynbos, Cederberg Sandstone Fynbos, Olifants Sandstone Fynbos, Graafwater Sandstone Fynbos |
Description | It occurs on rocky sandstone slopes. |
Threats |
| There are no severe threats to this species. |
Population |
Berkheya viscosa is a very rarely recorded species. Recent field observations indicate that it occurs in small, localized subpopulations. The population is not suspected to be declining.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Berkheya viscosa (DC.) Hutch. | Least Concern | Raimondo et al. (2009) | |
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.
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.
Roessler, H. 1959. Revision der Arctotideae-Gorteriinae (Compositae). Mitteilungen der Botanischen Staatssammlung München 3:71-500.
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Citation |
| von Staden, L. 2018. Berkheya viscosa (DC.) Hutch. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/12/04 |
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