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Scientific Name | Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. orbicularis Strid |
Higher Classification | Dicotyledons |
Family | RUTACEAE |
Synonyms | Adenandra amoena (Lodd.) Bartl. & H.L.Wendl., Adenandra pubescens Sond. |
National Status |
Status and Criteria | Near Threatened B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2017/10/06 |
Assessor(s) | L. von Staden |
Justification | This taxon is a range-restricted species, with an extent of occurrence (EOO) of 207 km². It is still a fairly common taxon in spite of ongoing habitat loss and degradation. An estimated 10-20 locations remain. It is listed as Near Threatened under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This subspecies is endemic to South Africa, and is found from the lower western and northern slopes of the Hottentots Holland Mountains to the lower slopes of the Kogelberg near Rooi Els. It is possibly found as far as Hangklip and Pringle Bay, but in this area it grades into subsp. robusta. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Kogelberg Sandstone Fynbos, Elgin Shale Fynbos, Cape Winelands Shale Fynbos, Boland Granite Fynbos, Western Coastal Shale Band Vegetation |
Description | It occurs on lower to mid-altitude slopes, predominantly on granite and shale. |
Threats |
| This taxon has lost habitat to dam construction and timber plantations along the Steenbras River in the past, but these threats have ceased. Currently it is threatened by ongoing habitat loss to coastal development at Rooi Els, Pringle Bay and Gordon's Bay. Around Sir Lowry's Pass Village it is threatened by habitat loss to development, as well as competition from dense infestations of alien invasive plants. |
Population |
It is a very localized taxon, but quite common within its range. There is ongoing, sporadic population decline due to ongoing habitat loss.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. orbicularis Strid | NT B1ab(iii,v)+2ab(iii,v) | 2020.1 | | Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. orbicularis Strid | Least Concern | Raimondo et al. (2009) | |
Bibliography |
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.
Strid, A. 1972. Revision of the genus Adenandra (Rutaceae). Opera Botanica 32:1-112.
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Citation |
| von Staden, L. 2017. Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. orbicularis Strid. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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