Kniphofia umbrina
| Kniphofia umbrina | |
|---|---|
| |
| Kniphofia umbrina inflorescence, Hhohho Region, Eswatini. | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asphodelaceae |
| Subfamily: | Asphodeloideae |
| Genus: | Kniphofia |
| Species: | K. umbrina
|
| Binomial name | |
| Kniphofia umbrina | |
Kniphofia umbrina, called the Eswati poker, is a species of flowering plant in the genus Kniphofia.[2] The species is native to an area near Forbes Reef in Eswatini, just to the north of Mbabane.[1]
Description
[edit]Plants are herbaceous perennials which may grow up to 1.8 metres (5.9 ft) tall. Stems emerge from a thick rhizome, with 6-8 leaves per stem.[1] Flowers are brown, slightly scented, and form a raceme. It is similar in characteristics to Kniphofia typhoides.[3]
Habitat
[edit]The species is native to sourveld, rocky grassland in a temperate climate.[1] Soils in the area are acidic, high in clay and organic matter, and serpentiferous.[4] Their observed distribution covers approximately 40 square kilometres (15 sq mi). The habitat falls on Swazi Nation Land, as well as on the Hawane Nature Reserve.[5]
Conservation
[edit]The species was first listed by the IUCN as vulnerable in 1978 after a detailed survey. There were between 3,000 and 4,000 estimated individuals. The population was initially threatened by maize cultivation and road construction.[1] Conservation measures were undertaken, including translocating individuals into Malolotja Nature Reserve and collecting seeds.[5] The population of 1,900 transplants eventually went extinct.[4]
Between 1978 and 1985, the population declined 92%, down to only 357 known plants. This was attributed to increased pressure by grazing, agriculture, and the construction of a dam. In 2001, the species was reassessed as critically endangered.[4]
References
[edit]- ^ a b c d e Synge, Hugh (1978). The IUCN Plant Red Data Book: Comprising Red Data Sheets on 250 Selected Plants Threatened on a World Scale. International Union for Conservation of Nature and Natural Resources Threatened Plants. p. 309. ISBN 978-2-88032-202-1. Retrieved 15 August 2021.
- ^ "Eswati Poker (Kniphofia umbrina)". iNaturalist. Retrieved 2021-08-15.
- ^ "Kniphofia umbrina in Global Plants on JSTOR". plants.jstor.org.
- ^ a b c Witkowski, E. T. F.; Dahlmann, L. A.; Boycott, R. C. (1 November 2001). "Conservation biology of Kniphofia umbrina, a critically endangered Swaziland serpentine endemic". South African Journal of Science. 97 (11): 609–616. hdl:10520/EJC97233. Retrieved 15 August 2021.
- ^ a b "Endemic Flora: Kniphofia umbrina". eswatininaturereserves.com. Eswatini National Trust Commission. Archived from the original on August 15, 2021. Retrieved 15 August 2021.
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