Inezia speciosa

Scientific Name
Inezia speciosa Brusse
Higher Classification
National Status
Status and Criteria
Endangered B1ab(iii)+2ab(iii)
Assessment Date
L. von Staden & P.J.D. Winter
EOO 5 km², AOO <3.8 km², known from two locations. Continuing decline in habitat at one location due to unmanaged encroachment from invasive alien pines and wattles. This location is also potentially threatened by mining and expansion of pine plantations. The habitat is continuous between the two locations. Subpopulations are fairly large and not severely fragmented.
South African endemic
Provincial distribution
Iron Crown, in the Wolkberg Mountains.
Habitat and Ecology
Major system
Major habitats
Northern Escarpment Quartzite Sourveld
Mistbelt grassland, mountain slopes above 1700 m.
This species is known only from the highest peak in the Wolkberg range, and the site is surrounded by plantations. It is quite likely that some habitat has been transformed to plantations in the past, but the former extent of the range is not known. The species has never been found on any of the other tall peaks in the Wolkberg range (PJD Winter pers. comm.). About 38% of grasslands on the north-facing and top of the Iron Crown mountain have been transformed to plantations before 1996 (estimated using GIS), but when, and over what period these plantations were established is not known. Since 1996 no further transformation has taken place within the known range of this species, according to recent satellite images from Google Earth. At present open grassland fragments are not well managed. Alien invasive species, especially escaping pine seedlings are encroaching. The one location, on two state owned farms is unlikely to be further transformed, as the highly endangered Blue Swallow is known to breed there. However, there is a potential threat of further expansion of plantations at the second location which is on privately owned adjacent properties. These properties are also infested with escaped pine and wattle seedlings and there is ongoing degradation of the habitat (PJD Winter pers. Obs. March 2008). Diamond prospecting is also likely to cause some further damage to the habitat in future.
Population trend
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Inezia speciosa BrusseEN B1ab(iii)+2ab(iii)Raimondo et al. (2009)
Inezia speciosa BrusseVU D2Victor (2002)
Inezia speciosa BrusseInsufficiently Known Hilton-Taylor (1996)

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.

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.

von Staden, L. & Winter, P.J.D. 2008. Inezia speciosa Brusse. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2019/04/23

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Distribution map

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