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Scientific Name | Zaluzianskya pilosissima Hilliard |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2019/11/08 |
Assessor(s) | D. Raimondo |
Justification | Zaluzianskya pilosissima is an endemic species to the western part of the Upper Karoo, with an extent of occurrence (EOO) of 19 730 km². While only recorded from 11 collection localities this part of South Africa is extremely poorly sampled and it is suspected to occur in many more places. This annual species, dependent on rain for growth and flowering was only recorded once during the Karoo BioGaps project which surveyed more than 60% of its range between 2016 and 2018. The extent of decline is however incredibly difficult to estimate. As an annual, this species should be able to survive long periods of drought as seeds in the seedbank. It is therefore listed as Least Concern. However should drought conditions continue for the next 10 years this species should be uplisted into a category of threat. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to South Africa, and is found from Bushmanland to Upper Karoo to Roggeveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Roggeveld Karoo, Upper Karoo Hardeveld, Western Upper Karoo, Roggeveld Shale Renosterveld |
Description | It occurs in sandy and gravelly flats and streambeds. It is an annual species dependent on rain to be recorded. |
Threats |
| Zaluzianskya pilosissima is potentially threatened by increasing frequency of drought as a result of climate change. The entire range of this species has experienced below average rainfall and above average temperatures for four consecutive years since 2016. |
Population |
There is no information available on the population of this species.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Zaluzianskya pilosissima Hilliard | Least Concern | Raimondo et al. (2009) | |
Bibliography |
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.
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Citation |
| Raimondo, D. 2019. Zaluzianskya pilosissima Hilliard. National Assessment: Red List of South African Plants version . Accessed on 2024/10/06 |
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