| Scientific Name | Polydora angustifolia (Steetz) H.Rob. | Higher Classification | Dicotyledons | Family | ASTERACEAE | Synonyms | Crystallopollen angustifolium Steetz, Polydora poskeana (Vatke & Hildebr.) H.Rob.sens.lat., Polydora steetziana (Oliv. & Hiern) H.Rob., Vernonia erinacea Wild, Vernonia poskeana Vatke & Hildebr. in broad sense, Vernonia poskeana Vatke & Hildebr. in broad sense subsp. botswanica G.V.Pope, Vernonia poskeana Vatke & Hildebr. in broad sense subsp. samfyana (G.V.Pope) G.V.Pope, Vernonia poskeana Vatke & Hildebr. var. chlorolepis (Steetz) O.Hoffm., Vernonia rhodanthoidea Muschl., Vernonia samfyana G.V.Pope, Vernonia steetziana Oliv. & Hiern |
National Status | Status and Criteria | Least Concern | Assessment Date | 2024/02/12 | Assessor(s) | W. Foden, L. von Staden, D.A. Kamundi, L. Potter, J.E. Victor & N.N. Mhlongo | Justification | This widespread species has an extent of occurrence (EOO) of 191 639 km² and an area of occupancy (AOO) of 680 km². It has no known threats and is not suspected to be declining. It is therefore listed as Least Concern. |
Distribution | Endemism | Not endemic to South Africa | Provincial distribution | Gauteng, Limpopo, North West | Range | This species is widely distributed through tropical and south tropical Africa, in Angola, Zaire (Democratic Republic of the Congo), Zambia, Zimbabwe, Malawi, Mozambique, Botswana, northern and central Namibia and the northern parts of South Africa and Swaziland. In South Africa, the species has been recorded from Limpopo, North West province, Gauteng, Mpumalanga and northern Free Sate province. |
Habitat and Ecology | Major system | Terrestrial | Major habitats | Legogote Sour Bushveld, Granite Lowveld, Kaalrug Mountain Bushveld, Malelane Mountain Bushveld, Central Sandy Bushveld, Loskop Mountain Bushveld, Gold Reef Mountain Bushveld, Pretoriuskop Sour Bushveld, Swaziland Sour Bushveld, Crocodile Gorge Mountain Bushveld, Tshokwane-Hlane Basalt Lowveld, Tzaneen Sour Bushveld, Makuleke Sandy Bushveld, Western Maputaland Sandy Bushveld, Tsende Mopaneveld, Northern Zululand Sourveld, Rand Highveld Grassland, Sekhukhune Mountain Bushveld, Soutpansberg Mountain Bushveld, Waterberg Mountain Bushveld, Andesite Mountain Bushveld, Gauteng Shale Mountain Bushveld | Description | Plants are found in drier grassland and savanna or in open woodland, usually along pans or depressions, along roadsides or railways, or as a weed of cultivated land. |
Threats | | This species has no known threats. |
Population | This species has had 331 observations posted by citizen scientists on the iNaturalist platform between 2012 and 2024 from across its known range. From these observations we infer that the population is locally common, stable and not declining.
| Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Vernonia steetziana Oliv. & Hiern | Least Concern | Raimondo et al. (2009) | | Vernonia poskeana Vatke & Hildebr. subsp. botswanica G.V.Pope | Least Concern | Raimondo et al. (2009) | | Vernonia rhodanthoidea Muschl. | Least Concern | Raimondo et al. (2009) | |
Bibliography | Hilliard, O.M. 1977. Compositae in Natal. University of Natal Press, Pietermaritzburg.
Pope, G.V. 1986. Vernonia Poskeana (Compositae) and related species in south tropical Africa. Kew Bulletin 41(1):37-43.
Pope, G.V. 1992. Compositae. In: G.V. Pope (ed). Flora Zambesiaca 6 (Part 1):1-255. Flora Zambesiaca Managing Committee, London.
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.
Robinson, H. 1999. Revisions in Paleotropical Vernonieae (Asteraceae). Proceedings of the Biological Society of Washington 112(1):220-247.
Robinson, H., Skvarla, J.J. and Funk, V.A. 2016. Vernonieae (Asteraceae) of southern Africa: A generic disposition of the species and a study of their pollen. PhytoKeys 60:49-126.
Swelankomo, N., Simango, N. and Manning, J.C. 2018. The genus Polydora Fenzl (Asteraceae: Vernonieae) in southern Africa. South African Journal of Botany 119:335-339.
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Citation | | Foden, W., von Staden, L., Kamundi, D.A., Potter, L., Victor, J.E. & Mhlongo, N.N. 2024. Polydora angustifolia (Steetz) H.Rob. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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