| Hakea cygna | |
|---|---|
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| Hakea cygna subsp. cygna near Tathra National Park | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Hakea |
| Species: | H. cygna |
| Binomial name | |
| Hakea cygna | |
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| Occurrence data from Australasian Virtual Herbarium | |
Hakea cygna, commonly known as the swan hakea, [2] is usually a dense shrub endemic to Western Australia with creamy-white upright flowers appearing from July to August.
Hakea cygna is an upright non-lignotuberous shrub growing to 0.4–2 m (1–7 ft) high. The smaller branches are densely covered in flattened silky hairs at flowering time. The leaves are variable, they may be flat and thick, narrowly egg-shaped widest in the middle, more or less needle-shaped or triangular in cross-section. Leaves are smooth 2–7.5 cm (0.79–3.0 in) long and 1.2–9 mm (0.047–0.35 in) wide with prominent veins on the leaf margin. The upper side of the leaves has 1-3 obscure longitudinal veins, the underside veins barely visible. The inflorescence consists of 6-14 creamy-white flowers in racemes, appearing upright and singly in leaf axils. The cream-white pedicels are smooth, rarely with soft short flattened hairs. The perianth a cream-white and the style is 5.5–7 mm (0.22–0.28 in) long. The oval to egg-shaped fruit are 2.1–3.7 cm (0.83–1.5 in) long and 1.2–2 cm (0.47–0.79 in) wide growing at an angle on a short thick stalk. The fruit is barely beaked but has a short prominent point. The seed are pale brown with darker streaks are broadly egg-shaped to almost triangular or circular and 12–20 mm (0.47–0.79 in) long. Flowers appear either from May to June or August to September. [2] [3] [4] [5] [6]
Hakea cygna was first formally described by Byron Barnard Lamont in 1987 and published in the Botanical Journal of the Linnean Society . [1] The specific epithet (cygna) is derived from the Latin word cygnus meaning "swan", [2] [7] referring to the shape of the fruit believed to resemble that of a swan. Two subspecies of Hakea cygna have been recognised.
Hakea cygna is widely distributed from Geraldton to Ravensthorpe in the south-east and east to Cape Arid. It grows in heath or mallee-heath on gravelly loams, sandy loams, white yellow or grey sand, often over laterite. [3]
Hakea cygna subsp. needlei is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife [5] meaning that it is poorly known and from only one or a few locations. [8]
Eucalyptus platypus, also known as moort or maalok, is a species of mallee or marlock that is endemic to the southwest of Western Australia. It has smooth bark, broadly elliptical to more or less round adult leaves, flower buds in groups of nine on a broad, flattened peduncle, usually creamy white flowers and conical, down-turned fruit.
Isopogon sphaerocephalus, commonly known as drumstick isopogon or Lesueur isopogon, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with linear to narrow egg-shaped leaves and spherical heads of hairy white to creamy yellow flowers.
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.
Eucalyptus georgei, commonly known as Hyden blue gum, is a species of tree or mallet that is endemic to Western Australia. It has smooth bark, glossy green, lance-shaped adult leaves, glaucous flower buds in groups of between seven and eleven, creamy white flowers and conical to cup-shaped fruit.
Eucalyptus kessellii, commonly known as Jerdacuttup mallee, is a species of mallee that is endemic to an area along the south coast of Western Australia. It has very hard, rough bark on the trunk of larger specimens, smooth greyish and brownish bark above, lance-shaped to egg-shaped adult leaves, flower buds in groups of three or seven, creamy white flowers and downturned, conical to cup-shaped fruit.
Eucalyptus striaticalyx, commonly known as Cue York gum or kopi gum, is a species of tree or mallee that is endemic to Western Australia. It has thick, rough, fibrous bark on the trunk and larger branches, lance-shaped adult leaves, flower buds in groups of between seven and thirteen, creamy white flowers and conical to cup-shaped fruit.
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 anadenia is a shrub in the family Proteaceae, native to near the west coast of Western Australia. The fragrant creamy-white flowers appear in profusion from late winter to spring, but do not produce nectar.
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 varia, commonly known as the variable-leaved hakea, is a shrub of the family Proteacea and endemic to Wheatbelt, South West, Great Southern and Goldfields-Esperance regions of Western Australia. It is a dense prickly shrub with creamy-white or yellow flowers and variably shaped leaves.
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 recurva, commonly known as jarnockmert, is a flowering shrub or small tree in the family Proteaceae and is endemic to an area in the Mid West, northern Wheatbelt and the Goldfields-Esperance regions of Western Australia. It has creams-white to yellow flowers and thick, prickly, curved leaves.
Hakea smilacifolia is a shrub in the family Proteacea. It has sweetly scented flowers, stiff leathery leaves and is endemic to an area in the Mid West, western Wheatbelt and the Goldfields-Esperance regions of Western Australia.
Hakea stenophylla is a shrub or tree in the family Proteacea, with sweetly scented creamy-white flowers. It is endemic to Western Australia.
Hakea subsulcata is a shrub in the family Proteacea and endemic to an area in the Wheatbelt, Great Southern and the Goldfields-Esperance regions of Western Australia. It is an upright, broom-like shrub with needle-shaped leaves and purple-pink flowers from winter to early spring.
Hakea sulcata, commonly known as furrowed hakea, is a flowering plant in the family Proteaceae and is endemic to Western Australia. It is a prickly shrub with grooved, cylindrical leaves, sweetly-scented flowers and relatively small fruit.
Corymbia cadophora, commonly known as the twinleaf bloodwood, is a species of small, straggly tree that is endemic to the Kimberley region of Western Australia. It has rough bark on the trunk and branches, a crown of sessile, egg-shaped or lance-shaped leaves joined in opposite pairs, flower buds mostly arranged in groups of seven, creamy white to pink or red flowers and urn-shaped to barrel-shaped fruit.
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.
Hakea recurva subsp. recurva is a plant in the family Proteaceae endemic to the south-west of Western Australia.
Rhadinothamnus rudis is a small shrub with needle-shaped, angular branchlets and single white flowers at the end of branches. This species and the three subspecies are endemic to Western Australia.
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