Syringodea longituba (Klatt) Kuntze subsp. violacea (M.P.de Vos) Goldblatt & J.C.Manning
|Syringodea longituba (Klatt) Kuntze var. violacea M.P.de Vos|
Status and Criteria
Near Threatened B1ab(iii)
|L. von Staden|
|A range-restricted taxon (EOO 18 450 km²) known from 10-16 locations and declining due to habitat loss to crop cultivation in parts of its range.|
|South African endemic|
|Widespread across the Little Karoo, from Matjiesfontein to Laingsburg, Barrydale and Oudtshoorn and southwards to Swellendam and Riversdale.|
Habitat and Ecology
|Matjiesfontein Shale Renosterveld, Robertson Karoo, Montagu Shale Renosterveld, Western Little Karoo, Koedoesberge-Moordenaars Karoo, Tanqua Karoo, Eastern Little Karoo, Central Rûens Shale Renosterveld, Breede Shale Fynbos, Gamka Thicket|
|Dry, rocky shale soils in renosterveld and succulent shrubland.|
|A small proportion of this taxon's habitat in the southern Little Karoo and Overberg is cultivated. At two sites in the Overberg where it is known from historical records, no suitable habitat remains and it is presumed locally extinct. This taxon's preference for rocky soils may offer it some protection against agricultural expansion, as such areas are generally unsuitable to cultivation. Subpopulations in the northern Little Karoo between Matjiesfontein and Laingsburg are not threatened.|
This taxon is locally common in suitable habitat, and subpopulations are large. Continuing decline is inferred from ongoing habitat loss in the southern Little Karoo and the Overberg.
De Vos, M.P. 1974. Die Suid-Afrikaanse genus Syringodea. Journal of South African Botany 40(3):201-254.
De Vos, M.P. 1983. Syringodea, Romulea. In: O.A. Leistner (ed). Flora of Southern Africa 7 Iridaceae, Part 2 Ixioideae, Fascicle 2:1-73. Botanical Research Institute, Pretoria.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity Institute, Pretoria.
|von Staden, L. 2017. Syringodea longituba (Klatt) Kuntze subsp. violacea (M.P.de Vos) Goldblatt & J.C.Manning. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/04/28|