Hakea decurrens

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Hakea decurrens
Hakea ducurrens physocarpa.jpg
Subspecies physocarpa
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Hakea
Species:
H. decurrens
Binomial name
Hakea decurrens
Hakea decurrensDistMap36.png
Occurrence data from AVH
Pink form Hakea decurrens pink.jpg
Pink form

Hakea decurrens, commonly known as bushy needlewood, [3] is a species of shrub or small tree in the family Proteaceae.

Contents

Description

Hakea decurrens is a semi-prostrate to erect scrambling bush or small tree 0.4–5 m (1–20 ft) tall. Smaller branches have short densely matted silky hairs, occasionally some quickly becoming smooth. Leaves are needle-shaped, widely spreading horizontally, are 1.5–8 cm (0.6–3 in) long and 0.7–1.6 mm (0.03–0.06 in) wide. The smooth leaves are grooved on the underside ending with a sharp point 1–3.5 mm (0.04–0.1 in) long. The inflorescence consists in 1-6 white or pink flowers on a short white or rusty slightly hairy or densely matted hairy short stalk. The hairs extending onto a 1.2–4.8 mm (0.047–0.19 in) long pedicel. The smooth perianth is 4.2–7.2 mm (0.17–0.28 in) long. The style is 8.5–12.2 mm (0.33–0.48 in) long. A profusion of flowers appear in leaf axils from May to September. The grey woody fruit are broadly egg-shaped, 1.8–3.5 cm (0.7–1 in) long and 1–3 cm (0.39–1.2 in) wide, covered in distinct warts ending in a prominent beak with two small horns. [3] [4] [5] [6] [7]

Taxonomy and naming

Hakea decurrens was first formally described in 1830 by Robert Brown in Supplementum primum prodromi florae Novae Hollandiae . [8] The specific epithet (decurrens) is a Latin word, meaning "decurrent" or "prolonged below the point of insertion", referring to the insertion of the leaf on the stem. [6]

In 1996, William Robert Barker described three subspecies of Hakea decurrens in the Journal of the Adelaide Botanic Gardens and the names are accepted by the Australian Plant Census. [9]

Distribution and habitat

The species is native and widespread in New South Wales, Victoria and Tasmania in Australia. Additionally, it is naturalised in South Australia and Portugal.

The distribution of the three subspecies is as follows:

References

  1. Douglas, S.; Barker, W.; Haegi, L. (2020). "Hakea decurrens". IUCN Red List of Threatened Species . 2020: e.T117487151A122768751. doi: 10.2305/IUCN.UK.2020-3.RLTS.T117487151A122768751.en . Retrieved 22 August 2024.
  2. "Hakea decurrens". Australian Plant Census. Retrieved 26 July 2025.
  3. 1 2 "Hakea decurrens". VicFlora-Online. Royal Botanic Gardens Victoria. Retrieved 27 February 2019.
  4. Holliday, Ivan (2005). Hakeas a Field and Garden Guide. Reed New Holland. ISBN   1-877069-14-0.
  5. Wrigley, John W.; Fagg, Murray (1989). Banksias, Waratahs & Grevilleas & all other plants in the Australian Proteaceae Family. Collins Australia. ISBN   0-7322-0020-2.
  6. 1 2 3 4 5 6 7 8 "Hakea decurrens". Flora of South Australia. South Australian Government. Retrieved 27 February 2019.
  7. 1 2 3 4 5 6 7 Wilson, Annette; Barker, Robyn M.; Haegi, Laurence A.; Barker, William R., eds. (1999). Flora of Australia (PDF). Vol. 17B. Canberra/Melbourne: ABRS-Department of Environment & Heritage. ISBN   0-643-06454-0.
  8. {{cite web |title=Hakea decurrens |url=https://biodiversity.org.au/nsl/services/rest/instance/apni/477076 |publisher=Australian Plant Name Index |access-date=26 July 2025}
  9. Barker, William R. (1996). "Novelties and taxonomic notes relating to Hakea (Proteaceae), mainly of eastern Australia". Journal of the Adelaide Botanic Gardens. 17. Retrieved 22 June 2022.
  10. "Hakea decurrens subsp. decurrens". Australian Plant Census. Retrieved 22 June 2022.
  11. "Hakea decurrens subsp. platytaenia". Australian Plant Census. Retrieved 22 June 2022.
  12. "Hakea decurrens subsp. physocarpa". Australian Plant Census. Retrieved 22 June 2022.