| Needles and corks | |
|---|---|
 | |
| Hakea obliqua growing near Lake Monginup | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Hakea |
| Species: | H. obliqua |
| Binomial name | |
| Hakea obliqua | |
 | |
| Occurrence data from AVH | |
Hakea obliqua, commonly known as needles and corks, [2] is a shrub in the family Proteaceae and is endemic to an area in the Wheatbelt, Great Southern and Goldfields-Esperance regions of Western Australia.
Hakea obliqua is an erect, dense shrub typically growing to a height of 0.5 to 3 metres (1.6 to 9.8 ft) and does not form a lignotuber. The branchlets and new growth are rusty coloured. The leaves are needle-shaped, rigid, thick and 1–7 cm (0.39–2.76 in) long, 1.1–2.5 mm (0.043–0.098 in) wide ending in a sharp, erect point. The inflorescence consist of 2-8 white-cream-yellow flowers sometimes with a greenish tinge on a stem 1.3–5 mm (0.051–0.197 in) long. The strongly scented flowers are in clusters in the leaf axils. The pedicels are 3.5–6 mm (0.14–0.24 in) long and densely covered with flattened silky white hairs that extend onto the 4.5–7.5 mm (0.18–0.30 in) long perianth. The pistil is 5.5–10 mm (0.22–0.39 in) long. The large rounded fruit are 2–4.5 cm (0.8–2 in) long and 2–4.5 cm (0.8–2 in) wide. The young fruit are smooth and as they age the surface becomes covered in thick angular cork outgrowths. The fruit taper at the apex with either a curved or straight point 1–6 mm (0.039–0.236 in) long. Flowering occurs from May to October. [3] [4] [5]
This species was first described by Robert Brown in 1810 and published the description in Transactions of the Linnean Society London. [6] [7] The specific epithet obliqua is derived from the Latin obliquus - "oblique, referring to the nectar gland which is on a slant from the flower axis". [3]
Hakea obliqua is found in southern Western Australia from the Stirling Range to Albany area to Israelite Bay and inland to Pingrup. [4] Grows in heath and scrubland on sand and sandy loam. [3]
Hake obliqua is classified as "not threatened" by the Western Australian Government. [2]
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 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 trifurcata, commonly known as two-leaf, two-leaved hakea, or kerosene bush, is a shrub, endemic to the south-west of Western Australia. The species has two leaf forms, needle-like or oblong egg-shaped. Unlike most hakea species the fruit remain green at maturity and resemble the broader leaf form. The mimicry creates a camouflage, reducing predation of the seed by granivores in particular cockatoos.
Hakea platysperma, commonly known as the cricket ball hakea, is a shrub in the family Proteaceae. It has long, sharply pointed, needle-shaped leaves and fragrant cream-reddish flowers in clusters from July to October. It is endemic to the south west of Western Australia.
Hakea rugosa, commonly known as wrinkled hakea or dwarf hakea, is a shrub of the family Proteaceae native to Australia. It has sharp needle-shaped leaves and white or cream fragrant flowers in profusion from August to October.
Hakea cycloptera, commonly known as elm-seed hakea, is a shrub in the family Proteaceae endemic to South Australia. It is a small spreading shrub with an abundance of pale pink or white flowers from December to August.
Hakea lorea, commonly known as bootlace oak or cork tree, is a species of shrub or small tree in the family Proteaceae found in central and northern Australia. It has needle-shape leaves, yellow, white or green flowers and hard corky bark.
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 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 candolleana is a shrub in the family Proteaceae native to areas along the west coast in the Wheatbelt and Mid West regions of Western Australia. A cream-white winter flowering species, useful as a garden ground cover.
Hakea circumalata is a shrub in the family Proteaceae native to an area in the Wheatbelt and Mid West regions of Western Australia. A small shrub producing a profusion of strongly scented pink to red flowers in dense clusters from July to September.
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 tuberculata is a flowering plant in the family Proteaceae and is endemic to several isolated areas along the coast in the Peel, South West, Great Southern and Goldfields-Esperance regions of Western Australia. It is an upright shrub with white flowers and rigid, prickly 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 psilorrhyncha is a flowering plant in the family Proteacea, it is endemic to a small area on the west coast in the Wheatbelt and Mid West regions of Western Australia. It has needle-shaped, sharply pointed leaves and clusters of scented brownish yellow flowers.
Hakea rigida is a flowering plant in the family Proteaceae with a restricted distribution and endemic to the western Goldfields region of Western Australia. It is a dense shrub with grey bark and sprays of pink flowers in spring.
Hakea stenophylla is a shrub or tree in the family Proteacea, with sweetly scented creamy-white flowers. It is endemic to Western Australia.
Hakea strumosa is a shrub in the family Proteacea endemic to an area in the Wheatbelt, Great Southern and the Goldfields-Esperance regions of Western Australia. A dense, very prickly shrub with a profusion of small, deep pink or red flowers in spring.
Hakea macrorrhyncha is a shrub in the family Proteaceae native to Australia. A restricted species of north-eastern New South Wales and south-eastern Queensland.