| Hakea oligoneura | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Hakea |
| Species: | H. oligoneura |
| Binomial name | |
| Hakea oligoneura | |
Hakea oligoneura is a small rare shrub known from only a few populations south of Perth, Western Australia growing exclusively on coastal limestone ridges. It has cream-white flowers and stiff, thick yellow-greenish leaves.
A small shrub 1.8–2 m (6–7 ft) high and up to 2 m (7 ft) wide with smooth bark or fine cracks at maturity. Smaller branches are cylindrical with dense white or rusty coloured hairs 0.2–0.4 mm (0.008–0.02 in) long and pressed against the stem becoming glabrous as they mature. Flat or rarely slightly inward curving leaves grow alternately along the stem. Narrowly lance-shaped, broader above the middle 21–68 mm (0.8–3 in) long and 4.5–10 mm (0.2–0.4 in) wide. The leaves are thin and stiff, with toothed thorny margins on the edges with 1-4 longitudinal veins. Fruit are 10–15 mm (0.4–0.6 in) long, 7–10 mm (0.3–0.4 in) wide and have small corky pyramid shaped projections on their surface. [2] [3]
Hakea oligoneura was first formally described by Kelly Shepherd and Robyn Barker in 2009 and published in Nuytsia . The specific epithet (oligoneura) is said to be derived from the Greek oligo meaning "few" and neuron meaning "nerve", [2] referring to the lack of prominent secondary veins in the leaves, distinguishing it from other closely related species. [3] The proper word in ancient Greek for "few" is however oligos (ὀλίγος). [4]
Hakea oligoneura has a restricted distribution known only in a few isolated populations in Yalgorup National Park between Mandurah and Bundbury along the Western Australian coast. Hakea oligoneura grows on limestone ridges in white-brown sand in open mallee scrubland. [3]
Hakea oligoneura is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, meaning that is rare or near threatened, due to its restricted distribution. [5] [6]
Hakea pachyphylla is a flowering plant in the family Proteaceae and is endemic to the upper Blue Mountains in New South Wales. It is a small shrub with stiff, needle-shaped leaves and clusters of yellow flowers. Formerly thought to be a Blue Mountains form of Hakea propinqua.
Hakea drupacea, commonly known as sweet scented hakea, is a tree or shrub which is native to south west Western Australia.
Hakea cygna, commonly known as the swan hakea, is usually a dense shrub endemic to Western Australia with creamy-white upright flowers appearing from July to August.
Hakea chromatropa is a species of shrub found in Southwest Australia. The distribution is restricted to an area around Wongan Hills, where it is found on gravelly loam in open shrubland. The flowers are white or creamy, becoming pink, and without a scent.
Hakea chordophylla, commonly known as bootlace oak, bootlace tree, corkwood, or bull oak, is a species of shrub or small tree in the family Proteaceae found in central and northern Australia. Bares very showy golden yellow, pale green or cream nectar rich flowers in winter.
Hakea cristata, commonly known as the snail hakea, 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.
Hakea aculeata, commonly known as the column hakea, is a vulnerable species of the family Proteaceae found in the Wheatbelt region of Western Australia. An unusual sculptural species with dense columns of prickly foliage and plentiful clusters of strongly scented blooms in spring.
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.
Hakea ambigua is a shrub in the family Proteaceae. In favourable conditions may grow into an attractive weeping shrub with creamy white flowers. Only found in the Stirling Ranges of southern Western Australia.
Hakea brownii commonly known fan-leaf hakea is a shrub in the family Proteaceae native to an area in the Wheatbelt region of Western Australia. This species shares a common name with Hakea baxteri due to its distinctive leaves.
Hakea ceratophylla, commonly known as the horned leaf hakea, is a shrub in the family) Proteaceae and is endemic to the southwest of Western Australia. It is a stiff shrub with variably-shaped leaves that are sometimes lobed and flowers with white or rusty-coloured hairs.
Hakea cinerea, commonly known as ashy or grey hakea, is a shrub in the family Proteaceae native to areas along the south coast in the Goldfields-Esperance region of Western Australia. It is a showy ornamental species bearing creamy-white flowers aging to orange with contrasting ash coloured grey-green leaves.
Hakea costata, commonly known as the ribbed hakea, is a shrub in the family Proteaceae native to Western Australia. A multi-stemmed small shrub producing attractive pink or white brush-like blooms rich in nectar from July to October.
Hakea cyclocarpa, commonly known as the ram's horn, wild bean or curved-fruit hakea is a shrub in the family Proteaceae. A strongly scented species with large creamy-white flowers with a red style and interesting fruit. Native to an area along the west coast and south west regions of Western Australia.
Hakea erecta is a shrub in the family Proteaceae and is endemic to Western Australia. It is a dense rounded shrub with linear twisted leaves and up to 24 pink or white fragrant flowers appearing in leaf axils in spring.
Hakea ilicifolia is an open shrub or tree in the family Proteacea and is endemic to Western Australia. It is a small, dense shrub with stiff, lobed leaves and clusters of yellow or creamy-white flowers.
Hakea megalosperma, commonly known as Lesueur hakea, is a shrub of the genus Hakea native to a small area along the west coast in the Wheatbelt region of Western Australia. It is a small shrub with sweetly fragrant white or pink flowers, darkening as they age to red and thick egg-shaped bluish-green leaves.
Hakea pendens is a flowering plant in the family Proteaceae and endemic to a small area in the Goldfields-Esperance regions of Western Australia. It is a small shrub with needle-like leaves and pendulous pink flowers.
Hakea stenophylla is a shrub or tree in the family Proteacea, with sweetly scented creamy-white flowers. It is endemic to Western Australia.
Hakea oldfieldii is a shrub of the family Proteaceae and is endemic to South West region of Western Australia. It has small white or cream-yellow flowers in profusion in spring.
