| Hakea decurrens | |
|---|---|
 | |
| H.decurrens subsp. physocarpa | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Hakea |
| Species: | H. decurrens |
| Binomial name | |
| Hakea decurrens | |
 | |
| Occurrence data from AVH | |
Hakea decurrens, commonly known as bushy needlewood, [3] is a species of shrub or small tree in the family Proteaceae.
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]
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]
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:
Hakea is a genus of about 150 species of flowering plants in the family Proteaceae, endemic to Australia. They are shrubs or small trees with leaves that are sometimes flat, otherwise circular in cross section in which case they are sometimes divided. The flowers are usually arranged in groups in leaf axils and resemble those of other genera, especially Grevillea. Hakeas have woody fruit which distinguishes them from grevilleas which have non-woody fruit which release the seeds as they mature. Hakeas are found in every state of Australia with the highest species diversity being found in the south west of Western Australia.
Hakea salicifolia commonly known as the willow-leaved hakea, is species of flowering plant that is endemic to eastern Australia. It is an adaptable, fast growing small tree or shrub with attractive foliage and cream white flowers.
Hakea bakeriana is a shrub in the family Proteaceae. It is endemic to the Central Coast of New South Wales, Australia. It is a dense shrub with sharply pointed, cylinder-shaped leaves and pink to crimson flowers in groups of between four and twelve. The fruit is a rough, wrinkled follicle which terminates in a short beak.
Hakea scoparia is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia where it grows in shrubland. It is a shrub with ascending branches, terete leaves and clusters of cream to pinkish flowers in leaf axils from June to September.
Hakea corymbosa, commonly known as the cauliflower hakea, is a species of flowering plant in the family Proteaceae which is endemic to the south-west of Western Australia. An attractive extremely prickly bush with sweetly scented yellowish flowers. The nectar-rich blooms and dense form provides a good habitat for wildlife.
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 teretifolia, commonly known as the dagger hakea, is a species of woody shrub of the family Proteaceae and is common on heathlands in coastal eastern Australia from northern New South Wales through to Victoria and Tasmania. A very prickly shrub, it is rarely cultivated but easy to grow.
Hakea sericea, commonly known as bushy needlewood or silky hakea, is a large shrub with a profusion of mainly white flowers from July for several months. It is endemic to eastern Australia. It has become an environmental weed in some countries.
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 undulata, commonly known as wavy-leaved hakea, is a flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It has stiff wavy leaves and fragrant cream-white flowers from mid-winter 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 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. Bears very showy golden yellow, pale green or cream nectar rich flowers in winter.
Hakea mitchellii, commonly known as desert hakea, is a shrub species in the family Proteaceae.
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 bicornata is a shrub in the family Proteaceae native to Western Australia, with attractive creamy-white flowers and fruit with two distinctive horns.
Hakea psilorrhyncha is a flowering plant in the family Proteaceae, 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 stenophylla is a shrub or tree in the family Proteaceae, with sweetly scented creamy-white flowers. It is endemic to Western Australia.
Hakea fraseri, the corkwood oak, is a species of shrub or small tree in the family Proteaceae and is endemic to northern New South Wales. It has furrowed bark, pendulous foliage and creamy-white flowers in spring.
Hakea leucoptera subsp. sericipes is a small tree with cylinder-shaped leaves and clusters of up to forty-five white fragrant flowers. It is found in northwestern New South Wales, Queensland and Western Australia.
