Grevillea refracta | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Grevillea |
Species: | G. refracta |
Binomial name | |
Grevillea refracta | |
Grevillea refracta, commonly known as silver-leaf grevillea, [2] is a species of plant in the protea family and is native to northern Australia. It is a tree or shrub usually with pinnatipartite leaves and red and yellow flowers arranged on a branched, downcurved raceme.
Grevillea refracta is a tree or shrub that typically grows to a height of 2–6 m (6 ft 7 in – 19 ft 8 in) and 4 m (13 ft) wide. The leaves are 40–210 mm (1.6–8.3 in) long and pinnatipartite with up to 27 egg-shaped to elliptic or linear lobes 40–130 mm (1.6–5.1 in) long and 1–45 mm (0.039–1.772 in) wide. Sometimes there are elliptic to more or less linear leaves 70–190 mm (2.8–7.5 in) long and 2–31 mm (0.079–1.220 in) wide. The lower surface of the leaves is hairy. The flowers are arranged on one side of an often downcurved raceme with 2 to 6 branches 5–20 mm (0.20–0.79 in) long, the oldest flowers at the tips of the branches. The flowers are red and orange, yellow or pink, the pistil 15–22.5 mm (0.59–0.89 in) long. Flowering occurs from April to September and the fruit is a thick-walled, glabrous, elliptic to more or less spherical follicle 18–31 mm (0.71–1.22 in) long. [2] [3] [4]
Grevillea refracta was first formally described in 1810 by the botanist Robert Brown in Transactions of the Linnean Society of London . [5] [6] The specific epithet (refracta) means "bent downwards". [4]
In 1994, Peter Olde and Neil Marriott described two subspecies of G. refracta and the names are accepted by the Australian Plant Census:
Subspecies glandulifera grows in woodland and savanna and is found in the Ord River catchment in Western Australia, extending just into the far west of the Northern Territory. [8] [9] Subspecies refracta grows in woodland, savanna and Triodia communities and is widespread in Western Australia, the Northern Territory and north-western Queensland, including on nearby islands, north of about latitude 21°S. [11] [12]
Grevillea petrophiloides, commonly known as pink pokers, rock grevillea or poker grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub with divided leaves, the lobes mostly linear, and cylindrical clusters of usually pink to reddish pink and bluish-grey flowers.
Banksia serratuloides is a species of small shrub that is endemic to Western Australia. It has linear, pinnatipartite leaves, yellow and pink flowers in heads of about forty and hairy, wrinkled follicles.
Grevillea curviloba is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a prostrate to erect shrub with short branchlets, divided leaves with linear to narrowly lance-shaped lobes with the narrower end towards the base, and white to cream-coloured flowers.
Grevillea pilosa 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 prostrate shrub with wedge-shaped to oblong leaves with sharply pointed, more or less triangular teeth or lobes, and clusters of pale pink to rose-pink or red flowers.
Grevillea arenaria, commonly known as sand grevillea or hoary grevillea, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is a spreading shrub with elliptic to egg-shaped leaves with the narrower end towards the base, and red, pink or orange flowers.
Grevillea concinna, commonly known as red combs or elegant 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 with mostly linear to narrow wedge-shaped leaves sometimes with a sharp point on the tip. Flower colour varies with subspecies.
Grevillea didymobotrya is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub with simple leaves, the size and shape depending on subspecies, and cylindrical groups of yellow or cream-coloured flowers.
Grevillea agrifolia, the blue grevillea, is a species of flowering plant in the family Proteaceae and is native to the north of Western Australia and parts of the Northern Territory. It is a shrub or tree with narrowly oblong leaves with the narrower end towards the base, and creamy-yellow flowers.
Grevillea diversifolia, the variable-leaved grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect to prostrate shrub with simple or divided leaves and groups white to cream-coloured flowers with a dull red style.
Grevillea nana, commonly known as dwarf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a prostrate to low, mounded, dense shrub with divided leaves with sharply-pointed, linear lobes, and clusters of pink, ornage, yellow or red flowers.
Grevillea insignis, commonly known as wax grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect, bushy shrub with more or less oblong leaves with seven to seventeen sharply-pointed, triangular teeth, and more or less spherical or cylindrical clusters of cream-coloured flowers ageing to pink.
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 dryandri is a species of flowering plant in the family Proteaceae and is endemic to northern Australia. It is a spreading to erect shrub with divided leaves with up to seventy or more linear to narrowly elliptic leaves, and long clusters of red, orange-red, pink or white flowers.
Grevillea amplexans is a species of flowering plant in the family Proteaceae and is endemic to the Mid West region of Western Australia. It is a spreading shrub with arching branches, stem-clasping, sharply-pointed, lobed or toothed leaves and white to cream-coloured 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.
Grevillea obliquistigma 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 with linear leaves, and conical to cylindrical clusters of creamy-white to yellowish cream-coloured flowers, sometimes tinged with pink.
Grevillea oligomera is a species of flowering plant in the family Proteaceae and is endemic to inland areas of Western Australia. It is an erect shrub with sometimes-divided leaves, the leaves or lobes linear, and reddish-pink and blue-grey flowers with a reddish-pink style.
Grevillea papillosa is a species of flowering plant in the family Proteaceae and is endemic to the South West region of Western Australia. It is a spreading shrub with narrowly elliptic to linear, as well as deeply divided leaves, and pink-tinged, white flowers with a reddish-pink style.
Grevillea patentiloba is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a prostrate to erect, spreading to straggling shrub with divided leaves, and down-turned clusters of red to deep pink and cream-coloured to bright yellow flowers with a red to deep pink style.
Grevillea pyramidalis, commonly known as the caustic bush, is a species of flowering plant in the family Proteaceae and is endemic to north-western Australia. It is an erect, spindly shrub or small tree with simple linear or pinnatisect leaves with linear to narrowly egg-shaped lobes, and white to yellow or cream-coloured flowers.