| Hakea acuminata | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Hakea |
| Species: | H. acuminata |
| Binomial name | |
| Hakea acuminata Haegi[1] | |
Hakea acuminata is a shrub of the family Proteaceae native to Western Australia. A restricted species bearing clusters of white flowers with a green or pinkish tinge in late autumn to winter.
Description
Hakea acuminata is a multi-branched shrub growing to 0.5 to 1.8 metres (1.6 to 5.9 ft) high, with smooth grey bark. Shiny rich green leaves have a yellow tinge at the base, are almost flat and partially whorled in the higher flowering branches. Leaves are concave, narrowly oval to egg-shaped 3 to 12 centimetres (1.2 to 4.7 in) long and 9 to 38 millimetres (0.354 to 1.496 in) wide. Leaves have one to three prominent longitudinal veins on both sides. The inflorescence has 16 to 24 flowers appearing in racemes in leaf axils. The perianth is a cream-yellow and the style long and prominent. The pistil is 34–37 mm (1–1 in) long. Egg-shaped woody fruit grow singly or in pairs 25 to 31 mm (1.0 to 1.2 in) long and 16 to 21 mm (0.63 to 0.83 in) wide. Fruit become corky as they age and have little or no beak. Seed are blackish-brown, obliquely egg-shaped 18 to 21 mm (0.71 to 0.83 in) long and 9 to 10 mm (0.354 to 0.394 in) wide with a wing extending down both sides of body. From May to October clusters of cream to pale yellow, ageing to pale pink blooms appear.[2][3][4]
Taxonomy and naming
Hakea acuminata was first formally described by botanist Laurence Haegi in 1999 as part of the work Appendix: Hakea written by Haegi, W.R.Barker, R.M.Barker, and A.J.Wilson as published in Flora of Australia.[5]
Distribution and habitat
This species is endemic to two small areas along the south coast in the Great Southern and Goldfields-Esperance regions of Western Australia between Ravensthorpe and Jerramungup. Grows on undulating plains of shrub-mallee or heath in deep white sand or loamy soils over granite.[2][6]
Conservation status
Hakea acuminata is classified as "Priority Two - Poorly Known", known from one or a few populations by the Government of Western Australia Department of Parks and Wildlife, meaning it is rare or near threatened, due to its restricted distribution.[7]
References
- ↑ Haegi, Laurence A. "Hakea acuminata". APNI. Retrieved 30 January 2019.
- 1 2 "Hakea acuminata". Electronic Flora of South Australia. Government of South Australia. Retrieved 17 October 2018.
- ↑ Young, J A (2006). "Hakeas of Western Australia:A Field and Identification Guide". J A Young. ISBN 0-9585778-2-X.
- ↑ Holliday, Ivan (2005). "Hakeas a Field and Garden Guide". Reed New Holland. ISBN 1-877069-14-0.
- ↑ "Hakea acuminata Haegi". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 17 October 2018.
- ↑ "Hakea acuminata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ↑ ""Conservation Codes for Western Australia Flora and Fauna"" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 31 January 2019.