Grevillea diffusa | |
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In Heathcote National Park | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Grevillea |
Species: | G. diffusa |
Binomial name | |
Grevillea diffusa | |
Synonyms [1] | |
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Grevillea diffusa is a species of flowering plant in the family Proteaceae and is endemic to the Sydney region of New South Wales. It is a low, compact shrub with elliptic to linear leaves, and dark red, or dark crimson to scarlet and burgundy-coloured flowers.
Grevillea diffusa is compact shrub that typically grows to a height of up to 50 cm (20 in) but sometimes an erect shrub to 2 m (6 ft 7 in). The leaves are elliptic to lance-shaped with the narrower end towards the base, or linear, 20–130 mm (0.79–5.12 in) long and 1–10 mm (0.039–0.394 in) wide, the lower surface silky-hairy and the edges curved down or rolled under. The flowers are arranged in dome-shaped to more or less spherical groups and are dark red, dark crimson to burgundy-coloured or scarlet, depending on subspecies. The pistil is usually 6–11 mm (0.24–0.43 in) long and the style strongly curved and more or less glabrous. Flowering occurs from July to November and the fruit is a glabrous follicle. [2] [3] [4] [5]
Grevillea diffusa was first formally described in 1827 by Kurt Polycarp Joachim Sprengel in Systema Vegetabilium from an unpublished description by Sieber. [6] [7] The specific epithet (diffusa) means "spread out". [8]
In 1986, Donald McGillivray described subspecies of G. diffusa in his book New Names in Grevillea (Proteaceae), and in 2000 Robert Owen Makinson described subspecies in Flora of Australia , and the following three names are accepted by the Australian Plant Census:
This grevillea grows in forest or woodland, occasionally in swampy heath and is restricted to Hawkesbury sandstone in the Sydney basin. Subspecies constablei is found south of Sydney from Waterfall to Helensburgh and near the Georges River, subspecies diffusa from the lower Georges River to the Illawarra region and subspecies filipendula between Calga and Mount White, north of Sydney. [10] [11] [13] [14] [16] [17]
Grevillea buxifolia, commonly known as grey spider flower, is a species of flowering plant in the family Proteaceae, and is endemic to New South Wales, Australia. It is an erect to spreading shrub with elliptic to egg-shaped leaves, and woolly-hairy clusters of rust-coloured to fawn flowers.
Grevillea rosmarinifolia, commonly known as rosemary grevillea, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern continental Australia and naturalised in other parts of the country. It is usually an erect, compact to open shrub with linear, narrowly elliptic or narrowly oblong leaves with the edges rolled under, and loose clusters of pink to red flowers.
Grevillea linearifolia, commonly known as linear-leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is an open, erect shrub with linear to narrowly elliptic leaves, and clusters of white flowers.
Grevillea sericea, commonly known as the pink spider flower, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is a shrub with elliptic to lance-shaped leaves with the narrower end towards the base, and clusters of usually pink flowers arranged on one side of a flowering rachis.
Grevillea baueri, commonly known as Bauer's grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the coastal ranges of south-eastern New South Wales. It is a low, spreading to erect shrub with mostly oblong to egg-shaped leaves with red to pink and cream-coloured or yellow flowers.
Grevillea rhyolitica, commonly known as Deua grevillea or Deua flame, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern New South Wales. It is a more or less erect shrub with elliptic leaves and hairy red flowers.
Grevillea hookeriana, commonly known as red toothbrushes or Hooker's grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a spreading to erect shrub, usually with linear leaves or deeply divided leaves with linear lobes, and toothbrush-shaped groups of red, black or yellowish green flowers, the style maroon to black.
Grevillea tripartita is species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect, prickly shrub with divided leaves with 3 lobes, and clusters of red and cream-coloured or reddish-orange and yellow flowers.
Grevillea irrasa is a species of flowering plant in the family Proteaceae and is endemic to south-eastern New South Wales. It is an erect, spreading shrub with oblong to egg-shaped leaves with the narrower end towards the base, and clusters of red to apricot-coloured flowers.
Grevillea oxyantha is a species of flowering plant in the family Proteaceae and is endemic to south-eastern continental Australia. It is an erect to spreading shrub with somewhat silky-hairy branchlets, broadly elliptic to broadly egg-shaped or almost round leaves, and hairy, crimson and pink flowers with a red style.
Grevillea neurophylla, commonly known as granite grevillea, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern continental Australia. It is a spreading to erect shrub with linear leaves, and clusters of white to pale pink flowers with a strongly hooked style.
Grevillea parviflora, commonly known as small-flower grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the Sydney region of eastern New South Wales. It is a low, dense, spreading to erect shrub with more or less linear leaves and white flowers with a red style that sometimes turns red as it ages.
Grevillea kedumbensis is a species of flowering plant in the family Proteaceae and is endemic to a restricted locale in the Great Dividing Range in central New South Wales in Australia. It is a twiggy shrub with narrowly elliptic to egg-shaped leaves with the narrower end towards the base, and clusters of hairy green to cream-coloured flowers.
Grevillea obtusiflora is a species of flowering plant in the family Proteaceae and is endemic to a small area of eastern New South Wales. It is a low, spreading to erect shrub with many stems, narrowly elliptic to oblong or linear to narrowly egg-shaped leaves with the narrower end towards the base, and pinkish-red and cream-coloured flowers with a red style.
Grevillea plurijuga is a species of flowering plant in the family Proteaceae and is endemic to southern Western Australia. It is a prostrate to low-lying or dense mounded to erect shrub with divided leaves with linear lobes and loose clusters of hairy, red or pink flowers.
Grevillea ramosissima, commonly known as fan grevillea, is a species of flowering plant in the family Proteaceae and is endemic to eastern continental Australia. It is a low, spreading shrub with lobed leaves and clusters of cream-coloured to pale yellow flowers.
Grevillea nematophylla, commonly known as water bush or silver-leaved water bush, is a species of flowering plant in the family Proteaceae and is endemic to Australia. It is shrub or small tree with simple or pinnatisect leaves, the leaves or lobes linear, and branched, cylindrical clusters of cream-coloured flowers.
Grevillea humilis is a species of flowering plant in the family Proteaceae and is endemic to eastern New South Wales. It is an erect to spreading shrub with narrowly elliptic to more or less linear leaves, and pink or white flowers.
Grevillea granulifera is a species of flowering plant in the family Proteaceae and is endemic to eastern New South Wales. It is a shrub with narrowly elliptic leaves and clusters of pinkish-red and creamy-white flowers.
Grevillea manglesioides is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a spreading shrub usually with wedge-shaped leaves with lobed ends, and toothbrush-shaped clusters of flowers, the colour varying with subspecies.