Snail hakea
Hakea cristata
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Hakea
Species:
H. cristata
Binomial name
Hakea cristata
Occurrence data from Australasian Virtual Herbarium
Hakea cristata foliage
Hakea cristata inflorescence

Hakea cristata, commonly known as the snail hakea,[3] is a shrub in the family Proteaceae native to Western Australia. An ornamental prickly shrub with attractive foliage and creamy white rounded flowers appearing in profusion in the winter months.

Description

Hakea cristata is a straggly, upright, multi-stemmed shrub typically growing to a height of 1 to 3.5 metres (3 to 11 ft), smaller branches smooth. The leaves grow alternately are more or less egg-shaped tapering toward the base, 4.5 to 8 centimetres (1.8 to 3.1 in) long and 2 to 5 cm (0.8 to 2.0 in) wide. The leaf margins are toothed and prickly, new growth smooth and an attractive pink-reddish colour. The smooth mid-green leaves have a central vein ending in a stiff sharp point. Each inflorescence is composed of 24-42 faintly scented cream white flowers and appear in upper leaf axils from May to August. The perianth is 2 to 4 mm (0.079 to 0.157 in) long and smooth. The style is smooth. The fruit distinguish this species having a toothed crest that runs along each side of the underside of the fruit valve ending in a triangular horn at the apex. Fruit grow at an angle on the stalk are egg-shaped 3.5 to 5 cm (1.4 to 2.0 in) long and 2.3 to 3 cm (0.91 to 1.18 in) wide. The surface has spiky toothed ridges, fruit may remain green even at maturity. The winged elliptic seeds are 3 to 3.4 cm (1.18 to 1.34 in) long.[3][4][5][6][7][8]

Taxonomy and naming

Hakea cristata was first formally described by the botanist Robert Brown in 1830 and published in Supplementum primum prodromi florae Novae Hollandiae.[2][9] The specific epithet (cristata) is derived from the Latin word cristatus meaning "tufted" or "crested",[10] referring to the crests along each side of the fruit.[4]

Distribution and habitat

The snail hakea is specifically associated with lateritic soils and granite outcrops in the jarrah forests of the Darling Scarp between Chittering and Mundaring.[3] It is usually part of open Eucalyptus wandoo woodland communities.[4]

Notes

  1. ↑ Barker, R.; Barker, W.; Gibson, N. (2020). "Hakea cristata". IUCN Red List of Threatened Species. 2020: e.T117486569A121862050. doi:10.2305/IUCN.UK.2020-2.RLTS.T117486569A121862050.en. Retrieved 13 March 2023.
  2. 1 2 "Hakea cristata". APNI. Retrieved 28 January 2019.
  3. 1 2 3 "Hakea cristata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 3 "Hakea cristata". Electronic Flora of South Australia. Government of South Australia. Retrieved 12 October 2018.
  5. ↑ Young, Jennifer A. (2006). Hakeas of Western Australia:A Field and Identification Guide. J.A. Young. ISBN 0-9585778-2-X.
  6. ↑ Holliday, Ivan (2005). Hakeas a Field and Garden Guide. Reed New Holland. ISBN 1-877069-14-0.
  7. ↑ Wrigley, John W.; Fagg, Murray (1989). Banksias, Waratahs & Grevilleas & all other plants of the Australian Proteaceae family. Collins. ISBN 0-7322-0020-2.
  8. ↑ Wilson, Annette; Barker, Robyn M.; Haegi, Laurence A.; Barker, William R. (1999). "Flora of Australia" Volume 17B Proteaceae 3 Hakeas to Dryandra. Canberra/Melbourne: ABRS-Department of Environment & Heritage. ISBN 0-643-06454-0.
  9. ↑ Brown, Robert (1830). Supplementum primum Prodromi florae Novae Hollandiae. Biodiversity Heritage Library.
  10. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 238.

References

  • Young, J.A. (2006) Hakeas of Western Australia - A Field and Identification Guide page 31
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