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Scientific Name | Argyrolobium trifoliatum (Thunb.) Druce |
Higher Classification | Dicotyledons |
Family | FABACEAE |
Synonyms | Argyrolobium obcordatum (E.Mey.) Steud., Argyrolobium sericeum (E.Mey.) Eckl. & Zeyh., Chasmone holosericea E.Mey., Chasmone obcordata E.Mey., Dichilus sericeus E.Mey. (later homonym), not of Spreng.f. (1832), Galega trifoliata Thunb. |
National Status |
Status and Criteria | Endangered B1ab(iii,v) |
Assessment Date | 2016/02/10 |
Assessor(s) | L. von Staden |
Justification | This species has an extent of occurrence (EOO) of 1058 km², five known locations continue to decline due to competition from alien invasive plants, as well as ongoing habitat loss and degradation. It is therefore assessed as Endangered under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | It occurs from Humansdorp to Uitenhage. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Loerie Conglomerate Fynbos, Kouga Grassy Sandstone Fynbos, Kouga Sandstone Fynbos, Tsitsikamma Sandstone Fynbos |
Description | Plants grow in coastal grassy fynbos below 300 m. |
Threats |
| This species has lost at least 35% of its habitat to timber plantations. There is no further ongoing expansion of timber plantations, but fynbos areas surrounding the plantations are infested with spreading, unmanaged alien invasive plants, predominantly escaping pine seedlings. Three of the five known remaining subpopulations are threatened by alien invasive plants. Additional threats include infrastructure development, coastal development and habitat loss to crop cultivation. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Argyrolobium trifoliatum (Thunb.) Druce | EN B1ab(iii,v) | 2017.1 | | Argyrolobium trifoliatum (Thunb.) Druce | Threatened | Raimondo et al. (2009) | |
Bibliography |
Edwards, T.J. 2005. A synopsis of Argyrolobium (tribe Genisteae, Papilionoideae) in South Africa. South African Journal of Botany 71(3):380-417.
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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.
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Citation |
| von Staden, L. 2016. Argyrolobium trifoliatum (Thunb.) Druce. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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