Grevillea williamsonii

Last updated

Grevillea williamsonii
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. williamsonii
Binomial name
Grevillea williamsonii
F.Muell.

Grevillea williamsonii, also known as Williamson's Grevillea, is a shrub which is endemic to a restricted area in the Grampians Ranges in western Victoria. It was first described from a single plant in 1893, which was destroyed by bushfire four years later. [1] It was then feared extinct and went unrecorded until 1992, where 12 plants were found. [2] The taxonomic validity of this grevillea has been disputed, and many sources treat it as synonymous with G. aquifolium . [3] [4]

Contents

Description

Grevillea williamsoni is a spreading shrub that grows 0.6–1 m tall. Leaves are elliptic to narrow, 1.5–4.0 cm long, 3–8 mm wide, entire or (occasionally on adults, commonly on juveniles) with 2–4 spreading triangular teeth; margins shortly and angularly refracted; lower surface subsericeous to subvillous with straight hairs. The perianth is lime-green becoming yellowish; style pale orange yellow becoming pale pink at about anthesis then darker reddish pink. Flowering occurs August-October. [3]

Taxonomy

Grevillea williamsonii was first described in 1893. It is named after its discoverer, H.B. Williamson. [1]

Many sources, including the National Herbarium of Victoria and the Australian Plant Census treat G. williamsonii as synononymous with G. aquifolium , with recent studies suggesting it is a sterile variant. [3] [4]

Distribution and habitat

The species is known only from a single area in the Grampians Ranges in western Victoria. [3]

Related Research Articles

<i>Grevillea aquifolium</i> Species of plant in the family Proteaceae endemic to South Australia and Victoria

Grevillea aquifolium is a shrubby or scrambling plant endemic to South Australia and Victoria. Common names include holly grevillea, prickly grevillea or variable prickly grevillea. It occurs naturally in woodland, open forest and heathland.

<i>Grevillea alpina</i> Species of shrub in the family Proteaceae from Victoria and southern New South Wales.

The Australian flowering shrub Grevillea alpina has several common names, including mountain grevillea, alpine grevillea, and cat's claws. It is not limited to alpine environments, and in fact is less common at high elevation than low. The species is variable in appearance, with five general forms described: small-flowered, Grampians, Northern Victorian, Goldfields, and Southern Hills forms. It is found in dry forests and woodlands across Victoria and into southern New South Wales. Some forms of the plant are low to the ground, and some become a spreading shrub. The flowers come in many colours, from white to green to shades of red and pink, or a pattern of several colours. The curled flowers are 1 to 3 centimetres in length. It is attractive to nectar-feeding insects and birds.

<i>Grevillea lanigera</i> Species of shrub in the family Proteaceae endemic to Victoria and New South Wales in Australia

Grevillea lanigera, commonly known as woolly grevillea, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern continental Australia. It is a spreading shrub with narrowly oblong to more or less linear leaves and clusters of pink to red, and cream-coloured flowers.

<i>Grevillea humifusa</i> Species of shrub in the family Proteaceae endemic to Western Australia

Grevillea humifusa, commonly known as spreading grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of the south-west of Western Australia. It is a prostrate shrub with long, trailing stems, divided lives with linear lobes and clusters of pink to pale red and cream-coloured flowers with a reddish, yellow-tipped style.

<i>Grevillea juniperina</i> Plant in family Proteaceae native in Australia

Grevillea juniperina, commonly known as juniper- or juniper-leaf grevillea or prickly spider-flower, is a plant of the family Proteaceae native to eastern New South Wales and southeastern Queensland in Australia. Scottish botanist Robert Brown described the species in 1810, and seven subspecies are recognised. One subspecies, G. j. juniperina, is restricted to Western Sydney and environs and is threatened by loss of habitat and housing development.

<i>Grevillea bipinnatifida</i> Species of shrub in the family Proteaceae endemic to Western Australia

Grevillea bipinnatifida, commonly known as fuchsia 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 shrub, usually with bipinnatifid leaves and loose clusters of dull pink to crimson flowers.

<i>Grevillea lavandulacea</i> Species of shrub in the family Proteaceae endemic to South Australia and Victoria

Grevillea lavandulacea, commonly known as lavender grevillea, is a species of flowering plant in the family Proteaceae and is endemic to southern continental Australia. It is a prostrate to spreading shrub with linear to elliptic leaves and clusters of pink to red flowers.

<i>Grevillea pilosa</i> Species of shrub in the family Proteaceae endemic to Western Australia

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.

<i>Grevillea australis</i> Species of plant in the family Proteaceae

Grevillea australis, commonly known as alpine grevillea or southern grevillea, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern Australia. It is a spreading to prostrate shrub with simple, narrowly egg-shaped leaves and groups of white to pale pink flowers with a glabrous ovary.

<i>Grevillea gariwerdensis</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

Grevillea gariwerdensis is a species of flowering plant in the family Proteaceae and is endemic to Grampians National Park in Victoria, Australia. It is a shrub with more or less linear to narrowly oblong leaves, and white to pink flowers with brownish hairs.

<i>Grevillea confertifolia</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

Grevillea confertifolia, commonly known as Grampians grevillea or dense-leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the Grampians in Victoria, Australia. It is a spreading, often dense shrub with linear to narrowly oblong leaves, and reddish-purple flowers.

<i>Grevillea ilicifolia</i> Species of shrub in the family Proteaceae endemic to South Australia, Victoria and New South Wales

Grevillea ilicifolia, commonly known as holly grevillea or holly bush, is a species of flowering plant in the family Proteaceae and is endemic to southern continental Australia. It is a spreading to prostrate shrub with holly-like leaves with sharply-pointed triangular to egg-shaped teeth or lobes, and clusters of green to cream-coloured and mauve flowers with a pink to red style.

<i>Grevillea polychroma</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

Grevillea polychroma , commonly known as Tullach Ard grevillea, is a species of flowering plant in the family Proteaceae and is endemic to eastern Victoria. It is a spreading to erect shrub with densely hairy branchlets, egg-shaped leaves, the narrower end towards the base, and down-turned clusters of hairy, cream-coloured, pale yellow or pink to red flowers.

<i>Grevillea micrantha</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

Grevillea micrantha, also known as small-flower grevillea, is a species of flowering plant in the family Proteaceae and is endemic to Victoria in Australia. It is a spreading shrub with linear leaves and clusters of white to pale pink flowers.

<i>Grevillea neurophylla</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

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.

<i>Grevillea patulifolia</i> Species of shrub in the family Proteaceae endemic to Victoria and New South Wales, Australia

Grevillea patulifolia, commonly known as swamp grevillea, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern continental Australia. It is an erect, or low spreading shrub with more or less linear to narrowly elliptic leaves, and large clusters of pale pink to dark mauve-pink flowers with a style that is hooked near its tip.

<i>Grevillea polybractea</i> Species of shrub in the family Proteaceae endemic to New South Wales and Victoria, Australia

Grevillea polybractea, commonly known as crimson grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the southeast of continental Australia. It is a spreading shrub with linear to narrowly oblong or narrowly elliptic leaves and pink to red and yellow or green flowers.

<i>Grevillea bracteosa</i> Species of shrub in the family Proteaceae endemic to Western Australia

Grevillea bracteosa, also known as bracted 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 spreading shrub usually with linear leaves, and oval to more or less spherical clusters of glabrous pale green to greenish-pink flowers with a pink or white style.

<i>Grevillea monticola</i> Species of shrub in the family Proteaceae endemic to Western Australia

Grevillea monticola 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 toothed to pinnatifid leaves with sometimes branched clusters of pale cream-coloured to yellowish-cream flowers.

<i>Grevillea paradoxa</i> Species of shrub in the family Proteaceae endemic to Western Australia

Grevillea paradoxa, commonly known as the bottlebrush 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 spreading, prickly shrub with pinnatipartite leaves, the lobes linear, widely spreading and sharply pointed, and with cylindrical clusters of pale to dark pink or cream-coloured flowers with a pinkish-red style.

References

  1. 1 2 "Grevillea williamsonii". Australian Native Plants Society. Retrieved 18 June 2024.
  2. Marriott, Neil. "Grevillea williamsonii; Clinging to Survival". Australian Plants Online. Retrieved 23 June 2024.
  3. 1 2 3 4 Makinson, R.O. "Grevillea williamsoni". Atlas of Living Australia. Retrieved 18 June 2024.
  4. 1 2 "Grevillea williamsonii (Williamson's Grevillea)". Australian Government Department of Climate Change, Energy, the Enviromment and Water. 6 June 2005. Retrieved 18 June 2024.