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Scientific Name | Cromidon decumbens (Thunb.) Hilliard |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
Synonyms | Manulea intertexta Herb. Banks, Polycarena intertexta Benth., Selago cordata E.Mey., Selago decumbens Thunb. |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2019/11/11 |
Assessor(s) | D. Raimondo |
Justification | Cromidon decumbens is a widespread, but rare and localized species. It has no severe threats, and is therefore not suspected to be in danger of extinction and is listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape, Northern Cape, Western Cape |
Range | This species is endemic to South Africa, and is widespread in the Northern, Western and Eastern Cape, where it occurs from the Hantam region around Calvinia southwards along the Roggeveld Escarpment, and from there eastwards along the Nuweveld Mountains to the Sneeuberg Complex near Graaff-Reinet. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Roggeveld Karoo, Hantam Karoo, Karoo Escarpment Grassland, Roggeveld Shale Renosterveld |
Description | It is localized to sheltered places under overhanging rocks. |
Threats |
| There are no severe threats to Cromidon decumbens as it occurs in an area with low human impact on the environment. Livestock farming, the main land use within its range, is unlikely to impact this species, as it occurs in a microhabitat that is inaccessible to grazing animals. |
Population |
Subpopulations are small and localized. Herbarium specimen notes indicate that it is uncommon. 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 | | Cromidon decumbens (Thunb.) Hilliard | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Hilliard, O.M. 1990. A brief survey of Scrophulariaceae-Selagineae. Edinburgh Journal of Botany 47(3):315-343.
Magee, A.R. and Boatwright, J.S. (eds). In prep. Plants of the Karoo: A Conspectus of the Nama-Karoo and Adjacent Summer-Rainfall Regions of the Northern and Western Cape Provinces. Strelitzia.
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 |
| Raimondo, D. 2019. Cromidon decumbens (Thunb.) Hilliard. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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