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Scientific Name | Strumaria perryae Snijman |
Higher Classification | Monocotyledons |
Family | AMARYLLIDACEAE |
Synonyms | Bokkeveldia perryae (Snijman) D.& U.Müll.-Doblies |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2017/07/17 |
Assessor(s) | D.A. Snijman & L. von Staden |
Justification | Strumaria perryae is a highly localized species known from one location where it is potentially threatened by habitat loss to agricultural expansion as well as habitat degradation due to overgrazing. It therefore qualifies as Vulnerable under criterion D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to the Bokkeveld Escarpment north of Nieuwoudtville. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Nieuwoudtville Shale Renosterveld |
Description | Plants grow in clay soils derived from karoo shales under low karroid shrubs. |
Threats |
| Shale soils on the Bokkeveld Escarpment have been extensively cultivated - there are several crop fields in the vicinity where this species was last recorded in 1990. There is no longer any extensive, active expansion of cultivation of clay soils, however, opportunistic, sporadic expansion of crop fields remains a potential threat. The site was used for livestock grazing, but at the time, grazing appeared to not have a negative impact on the population. Follow-up field surveys are needed to determine whether grazing has had any impact over the last 25 years. |
Population |
This species was last recorded in 1990, when it was known from a single, small subpopulation. Field surveys are urgently needed to relocate the population, as well as any additional subpopulations that may exist. At the time, the population appeared to be stable, but follow-up monitoring is required to determine the current population trend.
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Population trend | Stable |
Conservation |
| It is not currently conserved in any formally protected area. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Strumaria perryae Snijman | VU D2 | 2020.1 | | Strumaria perryae Snijman | Critically Rare | Raimondo et al. (2009) | | Strumaria perryae Snijman | VU D2 | Victor (2002) | | Strumaria perryae Snijman | Rare | Hilton-Taylor (1996) | |
Bibliography |
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical 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.
Snijman, D.A. 1992. Notes on the Strumariinae (Amaryllidaceae : Amaryllideae): six new taxa in Strumaria and Hessea from the central and northwestern Cape, South Africa, and southern Namibia. Bothalia 22(1):1-11.
Snijman, D.A. 1992. Systematic studies in the tribe Amaryllidae (Amaryllidaceae). Unpublished Ph.D., University of Cape Town.
Snijman, D.A. 1994. Systematics of Hessea, Strumaria and Carpolyza (Amaryllideae: Amaryllidaceae). Contributions from the Bolus Herbarium 16:1-162.
Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.
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Citation |
| Snijman, D.A. & von Staden, L. 2017. Strumaria perryae Snijman. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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