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Scientific Name | Chaenostoma calycinum Benth. |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
Synonyms | Sutera calycina (Benth.) Kuntze, Sutera calycina (Benth.) Kuntze var. ß laxiflora Hiern, Sutera polysepala Hiern |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2017/10/05 |
Assessor(s) | L. von Staden |
Justification | Chaenostoma calycinum is a range-restricted species, with an extent of occurrence (EOO) of 15 510 km². It is rarely recorded, but most likely overlooked. It is threatened by habitat loss in parts of its range, but is also resilient to disturbance, and therefore not suspected to be in danger of extinction. It is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | This species is endemic to the Eastern Cape in South Africa, where it is found from the Kei River to Barkly Pass. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Tsomo Grassland, Mthatha Moist Grassland, Drakensberg Foothill Moist Grassland, Lesotho Highland Basalt Grassland, Transkei Coastal Belt, Subtropical Dune Thicket, Hamburg Dune Thicket |
Description | It occurs on sandy floodplains, grassy slopes, in dune scrub and on earth banks. |
Threats |
| There is ongoing habitat loss to urban expansion around Mthatha and Qunu, but this is currently affecting only a small part of this species' range. |
Population |
Chaenostoma calycinum is common in open areas and appears to rapidly colonize disturbed places with bare ground (Hilliard 1994). It is known from 15-20 locations, but likely to be overlooked and more common than records suggest, as it occurs in a botanically poorly explored area.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Chaenostoma calycinum Benth. | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Hiern, W.P. 1904. Scrophulariaceae. In: W.T. Thiselton-Dyer (ed). Flora Capensis IV Section II (Hydrophyllaceae to Pedalineae):121-420. Lovell Reeve & Co., Ltd., London.
Hilliard, O.M. 1994. The Manuleae: a tribe of Scrophulariaceae. Edinburgh University Press, Edinburgh.
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. 2017. Chaenostoma calycinum Benth. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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