Psoralea cataracta is a species of flowering plant in the family Fabaceae. It was declared extinct in 2008 in the Red List of South African Plants, with a single specimen collected from the Tulbagh Waterfall in 1804. It was rediscovered 200 years later by Brian Du Preez in November of 2019 in the Winterhoek Mountains near Tulbagh.[3] It is endemic to the Western Cape.[4] It is also known by the name waterfall fountainbush.

Description

Psoralea cataracta has small purple flowers dangling on long, thread-like flower stalks.[4]

Distribution

Psoralea cataracta is found around the southern slopes of the Winterhoek Mountains in the Tulbagh Valley.[1]

Conservation status

As of the 2022 classification, Psoralea cataracta is classified as Critically Endangered due to its restricted extent of occurrence and area of occupancy of less than 8 km2, the threat of alien invasive species such as Acacia mearnsii and species of Pinus, and the expansion of farmland in the Winterhoek Mountains.[1]

References

  1. ^ a b c "SANBI Red List of South African Plants". South African National Biodiversity Institute Threatened Species Programme. Retrieved 2022-04-15.
  2. ^ "Psoralea cataracta". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 15 April 2022.
  3. ^ Preez, Brian du (2019-11-18). "Waterfall Fountainbush (Psoralea cataracta)". iNaturalist. Retrieved 2022-04-16.
  4. ^ a b "The rediscovery of the extinct Psoralea cataracta after 200 years". SANBI. 2020-01-09. Retrieved 2022-04-15.


Allikas: https://en.wikipedia.org/wiki/Psoralea_cataracta
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