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Scientific Name | Drosanthemopsis vaginata (L.Bolus) Rauschert |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Anisocalyx salarius L.Bolus, Anisocalyx vaginatus (L.Bolus) L.Bolus, Anysocalyx vaginatus (L.Bolus) L.Bolus, Drosanthemopsis salaria (L.Bolus) Rauschert, Drosanthemopsis vaginata (L.Bolus) Rauschert, Drosanthemum vaginatum L.Bolus, Jacobsenia vaginata (L.Bolus) Ihlenf. |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2008/04/28 |
Assessor(s) | C. Klak & D. Raimondo |
Justification | Part of the habitat at one known location declined due to quarrying. The population is not declining at present but continued quarrying and livestock trampling are potential threats. It is therefore listed as Vulnerable under criterion D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is found in Namaqualand, inland of Hondeklipbaai. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Riethuis-Wallekraal Quartz Vygieveld, Namaqualand Heuweltjieveld |
Description | Plants grow in quartz patches. |
Threats |
| Although presently undisturbed, an area of the Riethuis quartz has been quarried - mining remains a future potential threat along with overstocking of sheep. |
Population |
Population trend | Stable |
Conservation |
| It is not currently conserved in any formally protected area. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Jacobsenia vaginata (L.Bolus) Ihlenf. | VU D2 | Raimondo et al. (2009) | |
Bibliography |
Ihlenfeldt, H.D. 1997. The systematic position of the genus Drosanthemopsis Rauschert and a revision of the genus Jacobsenia L. Bolus et Schwantes (Mesembryanthemaceae). Mitteilungen aus dem Institut für Allgemeine Botanik Hamburg 27:109-126.
Klak, C., Haná?ek, P. and Bruyns, P. 2018. A recircumscription of Jacobsenia (Aizoaceae): Re-instating Drosanthemopsis, with two new quartz-endemics from Namaqualand, South Africa and sinking Knersia. South African Journal of Botany 116:67-81.
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 |
| Klak, C. & Raimondo, D. 2008. Drosanthemopsis vaginata (L.Bolus) Rauschert. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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