Taxonomy
Scientific Name
Tragia physocarpa Prain
Higher Classification
Dicotyledons
Family
EUPHORBIACEAE
National Status
Status and Criteria
Data Deficient - Taxonomically Problematic
Assessment Date
2018/05/21
Assessor(s)
L. von Staden
Justification
This species was described from material collected in northern Namibia (Prain 1912), and was not included in Prain's revision of the South African species (Brown et al. 1920). Subsequently, isolated records from Gauteng and the northern Cape have been matched to the description. The genus Tragia is in need of revision, and many species are poorly known. Due to the uncertainty around the identity of this taxon, its risk of extinction cannot be assessed at present.
Distribution
Endemism
Not endemic to South Africa
Provincial distribution
Gauteng, Northern Cape
Range
Known from a few scattered records from Gauteng and the Kalahari Region of the Northern Cape. It also occurs in northern Namibia.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Olifantshoek Plains Thornveld, Marikana Thornveld
Description
Rocky places in grassland, bushveld and thornveld.
Population

A widespread, but very poorly known species, last recorded in 1960. It may be overlooked, and possibly confused with other similar species.


Population trend
Unknown
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Tragia physocarpa PrainLeast Concern Raimondo et al. (2009)
Bibliography

Brown, N.E., Hutchinson, J. and Prain, D. 1920. Euphorbiaceae. In: W.T. Thiselton-Dyer (ed). Flora Capensis V Section II (Thymeleaceae-Ceratophylleae):216-516. L. Reeve & Co., Ltd., Ashford.


Prain, D. 1912. Diagnoses Africanae, XLVIII: Tragia. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1912(5):235-240.


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.


Retief, E. and Herman, P.P.J. 1997. Plants of the northern provinces of South Africa: keys and diagnostic characters. Strelitzia 6. National Botanical Institute, Pretoria.


Citation
von Staden, L. 2018. Tragia physocarpa Prain. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/10/20

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Distribution map


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