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Scientific Name | Conophytum roodiae N.E.Br. subsp. sanguineum (S.A.Hammer) T.Smale |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Conophytum rugosum S.A.Hammer subsp. sanguineum S.A.Hammer |
National Status |
Status and Criteria | Critically Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2020/02/06 |
Assessor(s) | A.J. Young & S.A. Hammer |
Justification | A highly restricted taxon endemic to the Namaqualand region of the Northern Cape, South Africa. It occurs in one location that occupies an area of under 1 km². Based on the IUCN Red List Guidelines it has an extent of occurrence (EOO) and an area of occupancy (AOO) of 8 km². There is ongoing decline to the population as a result of overgrazing and the impacts of severe drought as well as due to illegal collecting for the succulent horticultural trade. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | information redacted, contact SANBI |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Klipkoppe Shrubland |
Description | Shallow grit pans on gneiss. |
Threats |
| Habitat degradation is the main threat to this taxon. It occupies a very small site on rangelands. The growth habit of the plants in open grit pans makes it potentially vulnerable to trampling and grazing by livestock. The stability of these pans is essential to support these small succulents and any disturbance can be detrimental. There has been severe overgrazing in this region since 2016 as a result of extremely drought conditions. Furthermore, despite being well known, this taxon remains uncommon in cultivation. With a significant increase in the trade of Conophytums coming from Asian countries this species is suspected to be declining due to illegal collecting. |
Population |
This taxon is known from a single, small subpopulation of less than 500 plants. The population is declining due to droughts, habitat degradation from livestock overgrazing and illegal collection.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Conophytum roodiae N.E.Br. subsp. sanguineum (S.A.Hammer) T.Smale | VU D2 | Raimondo et al. (2009) | | Conophytum roodiae N.E.Br. subsp. sanguineum (S.A.Hammer) T.Smale | VU D2 | Victor (2002) | | Conophytum rugosum S.A.Hammer subsp. sanguineum S.A.Hammer | Rare | Hilton-Taylor (1996) | |
Bibliography |
Hammer, S. 2002. Dumpling and his wife: New view of the genus Conophytum. EAE Creative Colour, Norwich.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical 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.
Smale, T. 2000. Conophytum roodiae and its relatives. British Cactus and Succulent Journal 18(2):101-107.
Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.
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Citation |
| Young, A.J. & Hammer, S.A. 2020. Conophytum roodiae N.E.Br. subsp. sanguineum (S.A.Hammer) T.Smale. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/12/03 |
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