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Scientific Name | Agathosma gonaquensis Eckl. & Zeyh. |
Higher Classification | Dicotyledons |
Family | RUTACEAE |
Synonyms | Hartogia gonaquensis Kuntze |
Common Names | Hottentotsboegoe (a) |
National Status |
Status and Criteria | Critically Endangered B1ab(ii,iii,iv,v) |
Assessment Date | 2006/10/31 |
Assessor(s) | T. Trinder-Smith & D. Raimondo |
Justification | A large number of old herbarium collections indicate that this species was once common around Port Elizabeth, however, only two small, severely fragmented subpopulations remain after the majority of this species' habitat was lost to urban expansion. The extent of occurrence (EOO) is 100 km², it continues to decline due to alien plant invasion and ongoing urban expansion. It is therefore assessed as Critically Endangered under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | It is found from Uitenhage to Port Elizabeth. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Humansdorp Shale Renosterveld, Algoa Sandstone Fynbos, Albany Alluvial Vegetation, Sundays Valley Thicket |
Description | Plants grow in coastal grassland with fynbos elements. |
Threats |
| Urban expansion of Port Elizabeth over the past 200 years has lead to the majority (six) of this species' recorded subpopulations going extinct. Urban expansion is an ongoing threat especially at Deal Party. Infrastructure development at Coega harbour threatens one subpopulation. Alien plants are a severe threat to the subpopulation at Deal Party. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Agathosma gonaquensis Eckl. & Zeyh. | CR B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
Bolus Herbarium. The genus Agathosma, specimen data from the Bolus Herbarium Collections database. University of Cape Town, Cape Town. Downloaded on 2007.
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.
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 |
| Trinder-Smith, T. & Raimondo, D. 2006. Agathosma gonaquensis Eckl. & Zeyh. National Assessment: Red List of South African Plants version . Accessed on 2025/04/11 |
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