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Scientific Name | Polycarena filiformis Diels |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
Synonyms | Polycarena gracilipes N.E.Br. ex Hiern |
National Status |
Status and Criteria | Rare |
Assessment Date | 2018/11/14 |
Assessor(s) | D. Raimondo & K. Naidoo |
Justification | A range-restricted species formerly only known from around Calvinia. Recent field surveys have extended the range southwards as far as the Tanqua Karoo National Park (EOO 8611 km²), however, specimen notes indicate that it occurs in low abundance in specialized habitat. It is therefore listed under the IUCN 3.1 Criteria, globally, as Least Concern but is nationally categorised as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is known to occur in Calvinia district, Hantamsberg Mountain to the Tanqua Karoo. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Tanqua Karoo, Hantam Karoo, Nieuwoudtville Shale Renosterveld, Tanqua Wash Riviere |
Description | Plants grow in shady places, on shale slopes in the shelter of small karroid shrubs. |
Threats |
| No threats have been reported for this species. |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Polycarena filiformis Diels | Rare | Raimondo et al. (2009) | | Polycarena filiformis Diels | Insufficiently Known | Hilton-Taylor (1996) | | Polycarena gracilipes N.E.Br. ex Hiern | Uncertain | Hall et al. (1980) | | Polycarena filiformis Diels | Uncertain | 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.
Hilliard, O.M. 1994. The Manuleae: a tribe of Scrophulariaceae. Edinburgh University Press, Edinburgh.
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. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Raimondo, D. & Naidoo, K. 2018. Polycarena filiformis Diels. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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