Grevillea elongata explained

Grevillea elongata, also known as Ironstone grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with divided leaves with sharply-pointed linear lobes, and conical or cylindrical groups of white flowers.

Description

Grevillea elongata is a shrub that typically grows to a height of with more or less glabrous branchlets. The leaves are long with three linear, sharply-pointed lobes long and about wide, the lobes often further divided. The flowers are arranged in conical to cylindrical groups on a hairy rachis, each flower on a pedicel long with bracts long at the base. The flowers are white, the pistil long. Flowering occurs from October to December and the fruit is an oblong follicle about long.[1]

Taxonomy

Grevillea elongata was first formally described in 1994 by Peter M. Olde and Neil R. Marriott in The Grevillea Book from specimens collected by Olde near Ruabon in 1991.[2] The specific epithet (elongata) means "lengthened".[3]

Distribution and habitat

Ironstone grevillea grows in heath, often near creeks and is restricted to an area near Busselton and Ruabon in the Swan Coastal Plain biogeographic region of south-western Western Australia.

Conservation status

Grevillea elongata is listed as Endangered on the IUCN Red List of Threatened Species and under the Biodiversity Conservation Act 2016 in Western Australia.[4] It is also listed as Vulnerable under the Australian Government Environment Protection and Biodiversity Conservation Act 1999[5] and as "Threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, meaning that it is in danger of extinction.[6] The main threats to the species are weed invasion, grazing by rabbits, and habitat loss and disturbance.[7] [8]

See also

Notes and References

  1. Web site: Grevillea elongata . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 7 April 2022.
  2. Web site: Grevillea elongata. APNI. 7 April 2022.
  3. Book: Sharr . Francis Aubi . George . Alex . Western Australian Plant Names and Their Meanings . 2019 . Four Gables Press . Kardinya, WA . 9780958034180 . 191 . 3rd.
  4. Web site: Grevillea elongata — Ironstone Grevillea . 6 January 2024 . Australian Government Department of Climate Change, Energy, the Environment and Water.
  5. Web site: EPBC Act List of Threatened Flora . 6 January 2024 . Australian Government Department of Climate Change, Energy, the Environment and Water.
  6. Web site: Conservation codes for Western Australian Flora and Fauna. Government of Western Australia Department of Parks and Wildlife. 7 April 2022.
  7. Monks, L. . Keighery, G. . 2020 . Grevillea elongata . 2020 . e.T113016292A113307931 . 10.2305/IUCN.UK.2020-3.RLTS.T113016292A113307931.en . 6 January 2024.
  8. Web site: Conservation Advice Grevillea elongata - ironstone grevillea . Australian Government Department of Agriculture, Water and the Environment . 7 April 2022.