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Scientific Name | Wahlenbergia rivularis Diels |
Higher Classification | Dicotyledons |
Family | CAMPANULACEAE |
Synonyms | Wahlenbergia tysonii Zahlbr. |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2018/07/05 |
Assessor(s) | L. von Staden |
Justification | Wahlenbergia rivularis is a widespread species that is declining across most of its range. It has an extent of occurrence (EOO) of 162 568 km² and is not yet in danger of extinction. It is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape, Free State, KwaZulu-Natal, Mpumalanga |
Range | This species is endemic to South Africa, and occurs from the Mpumalanga Drakensberg Escarpment near Lydenburg, southwards to the KwaZulu-Natal Drakensberg and Midlands and the Amathole Mountains in Eastern Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Drakensberg Foothill Moist Grassland, Amathole Mistbelt Grassland, Drakensberg-Amathole Afromontane Fynbos, uKhahlamba Basalt Grassland, Lesotho Highland Basalt Grassland, Karoo Escarpment Grassland, Barberton Montane Grassland, Steenkampsberg Montane Grassland, Amathole Montane Grassland, Basotho Montane Shrubland, Midlands Mistbelt Grassland, Southern KwaZulu-Natal Moist Grassland, East Griqualand Grassland, Mthatha Moist Grassland, Tsomo Grassland, Moist Coast Hinterland Grassland, Northern KwaZulu-Natal Moist Grassland, Mooi River Highland Grassland, Long Tom Pass Montane Grassland |
Description | It is localized to stream sides in montane and mistbelt grassland. |
Threats |
| About 30% of grasslands within this species' range are already irreversibly modified, predominantly due to historical habitat loss to timber plantations. There is no longer significant ongoing expansion of plantations, but remaining subpopulations persisting on small, isolated fragments continue to be threatened by competition from alien invasive plants and overgrazing. |
Population |
There is no information available on the population of this species.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Wahlenbergia rivularis Diels | Least Concern | Raimondo et al. (2009) | |
Bibliography |
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.
Retief, E. and Herman, P.P.J. 1997. Plants of the northern provinces of South Africa: keys and diagnostic characters. Strelitzia 6. National Botanical Institute, Pretoria.
Von Brehmer, W. 1915. Über die systematische Gliederung und Entwicklung der Gattung Wahlenbergia in Afrika. Botanische Jahrbücher für Systematik 53:9-143.
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Citation |
| von Staden, L. 2018. Wahlenbergia rivularis Diels. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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