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Scientific Name | Zantedeschia valida (Letty) Y.Singh |
Higher Classification | Monocotyledons |
Family | ARACEAE |
Synonyms | Zantedeschia albomaculata (Hook.) Baill. subsp. valida Letty |
Common Names | Drakensberg Arum (e) |
National Status |
Status and Criteria | Vulnerable B1ab(iii) |
Assessment Date | 2023/11/14 |
Assessor(s) | H. Mtshali & A. Jakoet |
Justification | This species has an extent of occurrence (EOO) of 1597 km ² and it is known from seven locations. The population is declining due to agricultural expansion which causes habitat loss and degradation. It therefore qualifies as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | KwaZulu-Natal |
Range | It occurs in northern KwaZulu-Natal, between Ladysmith and Dundee. It has also been historically found in the Giant's Castle Game Reserve. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Northern KwaZulu-Natal Moist Grassland |
Description | Plants are restricted to rocky outcrops, streambanks and vleis in northern KwaZulu-Natal. It is also found in moist grassland. |
Threats |
| At least 30% of this species' habitat has already been irreversibly modified due to agricultural expansion. Streams are often dammed, resulting in flooding of streamside habitats and wetlands are drained to allow crop cultivation. These factors together with overgrazing have resulted in the continuous loss and degradation of the habitat. |
Population |
No population data is available for this species. However, the population is inferred to be declining due to habitat loss and degradation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Zantedeschia valida (Letty) Y.Singh | VU B1ab(iii) | 2015.1 | | Zantedeschia valida (Letty) Y.Singh | Rare | Raimondo et al. (2009) | | Zantedeschia valida (Letty) Y.Singh | Not Threatened | Hilton-Taylor (1996) | | Zantedeschia albomaculata (Hook.) Baill. subsp. valida Letty | Rare | Hall et al. (1980) | |
Bibliography |
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Letty, C. 1973. The genus Zantedeschia. Bothalia 11(1&2):5-26.
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.
Singh, Y., van Wyk, A.E. and Baijnath, H. 1996. Taxonomic notes on the genus Zantedeschia Spreng. (Araceae) in southern Africa. South African Journal of Botany 62(6):321-324.
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Citation |
| Mtshali, H. & Jakoet, A. 2023. Zantedeschia valida (Letty) Y.Singh. National Assessment: Red List of South African Plants version . Accessed on 2025/05/31 |
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