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Scientific Name | Watsonia aletroides (Burm.f.) Ker Gawl. |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Common Names | Pypie (a), Rooipypie (a) |
National Status |
Status and Criteria | Near Threatened A2cb |
Assessment Date | 2008/02/05 |
Assessor(s) | N.A. Helme & D. Raimondo |
Justification | A widely distributed species (EOO 21 600 km²) occurring on clay soils throughout the Overberg, the Riversdale Plain, the Little Karoo and Upper Breede River Valley. It has lost habitat throughout its range to crop cultivation (over 70% in the past 80 years). At least 50% of the 112 known subpopulations have been lost to crop cultivation. It is still found on renosterveld fragments in the Overberg. We suspect that at least 25% of its habitat has been lost in past 30 years which corresponds to three generations (generation length 10-15 years). There is a linear relationship between habitat availability and the number of subpopulations of this species. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Bot River to Knysna and Uniondale. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Mossel Bay Shale Renosterveld, Eastern Ruens Shale Renosterveld, Central Ruens Shale Renosterveld, Tsitsikamma Sandstone Fynbos, Overberg Sandstone Fynbos |
Description | Clay flats. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Watsonia aletroides (Burm.f.) Ker Gawl. | NT A2cb | Raimondo et al. (2009) | |
Bibliography |
Goldblatt, P. 1989. The genus Watsonia. A systematic monograph. Annals of Kirstenbosch Botanic Gardens 19:1-148. National Botanic Gardens, Cape Town.
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
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.
Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.
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Citation |
| Helme, N.A. & Raimondo, D. 2008. Watsonia aletroides (Burm.f.) Ker Gawl. National Assessment: Red List of South African Plants version . Accessed on 2025/04/19 |
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