|
Scientific Name | Pelargonium burgerianum J.J.A.van der Walt |
Higher Classification | Dicotyledons |
Family | GERANIACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2019/03/29 |
Assessor(s) | L. von Staden |
Justification | A very localized species, known from two locations and potentially threatened by habitat loss to agricultural expansion. It therefore qualifies as Vulnerable under criterion D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs in Koo Valley near Montagu. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Montagu Shale Fynbos |
Description | Plants grow in coarse sandy soil derived from sandstone on gentle slopes near streams. |
Threats |
| The lower slopes of the Koo Valley around the two farms where this species was last collected in the early 1990s are extensively cultivated, but comparative land cover datasets show no significant further expansion of fruit orchards since 1990. Although the author states that the species occurs on sandstone, there is no sandstone within the altitudinal range (900-1000 m) as indicated on the specimens, and it may have been collected from shale fynbos, in which case it is potentially vulnerable to further habitat loss to agricultural expansion. |
Population |
This species is locally common across an area of about five kilometres spanning two adjacent farms (Van der Walt 1994). It was observed in the first year after a fire, and possibly only flowers in response to fires, and may therefore be overlooked. It was last recorded in 2005.
|
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Pelargonium burgerianum J.J.A.van der Walt | VU D2 | 2020.1 | | Pelargonium burgerianum J.J.A.van der Walt | Rare | Raimondo et al. (2009) | | Pelargonium burgerianum J.J.A.van der Walt | 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.
Van der Walt, J.J.A. 1994. A new species of Pelargonium section Campylia (Geraniaceae). South African Journal of Botany 60(3):144-148.
|
Citation |
| von Staden, L. 2019. Pelargonium burgerianum J.J.A.van der Walt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/15 |
Comment on this assessment
