Grevillea rudis

Grevillea rudis
Conservation status
	; Priority Four — Rare Taxa (DEC)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Proteales
Family:	Proteaceae
Genus:	Grevillea
Species:	G. rudis
Binomial name
	Grevillea rudis; Meisn.

Last updated February 12, 2023

Grevillea rudis is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a loose, spreading to erect shrub with divided leaves, the end lobes more or less triangular to oblong and sharply pointed, and more or less cylindrical clusters of cream-coloured flowers, the style turning pink as it ages.

Description

Grevillea rudis is a loose, spreading to erect shrub that typically grows to a height of 20–90 cm (7.9–35.4 in). Its leaves are mostly 15–30 mm (0.59–1.18 in) long, 5–20 mm (0.20–0.79 in) wide and divided with 3 to 5 broadly triangular to oblong lobes sometimes divided again, the end lobes or teeth more or less triangular to oblong, sharply pointed and 5–10 mm (0.20–0.39 in) long. The lower surface of the leaves is scaly at first, later glabrous. The flowers are arranged above the foliage in a more or less cylindrical cluster 30–120 mm (1.2–4.7 in) long. The flowers are cream-coloured, the style creamy white, the pollen presenter turning pinkish as it ages, and the pistil is 5.0–6.5 mm (0.20–0.26 in) long. Flowering occurs sporadically throughout the year with a peak in spring, and the fruit is an oval follicle 11–12 mm (0.43–0.47 in) long.^[2]^[3]^[4]

This grevillea is similar to G.althoferorum but has less deeply divided leaves, the flowers held above the foliage.^[2]

Taxonomy

Grevillea rudis was first formally described in 1855 Carl Meisnerin Hooker's Journal of Botany and Kew Garden Miscellany from specimens collected by James Drummond.^[5] The specific epithet (rudis) means "rough" or "wild", referring to the leaves and branches.^[3]^[6]

Distribution and habitat

This grevillea grows in well-drained laterite between Eneabba, Jurien Bay and Watheroo in the Coolgardie, Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia.^[2]^[4]

Conservation status

Grevillea rudis is listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,^[4] meaning that it is rare or near threatened.^[7]

Related Research Articles

Grevillea leptopoda 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 divided leaves, the lobes further divided, the end lobes linear, and clusters of white to cream-coloured flowers.

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.

Grevillea levis is a species of flowering plant in the family Proteaceae and is endemic to the west of Western Australia. It is a dense shrub with divided leaves, the end lobes linear and sharply pointed, and clusters of white to cream-coloured flowers, sometimes flushed with pink.

Grevillea leucopteris, also known as old socks or white plume 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, bushy shrub with divided leaves with erect, linear lobes and clusters of white to cream-colured flowers displayed above the foliage.

Grevillea intricata is a species of flowering plant in the family Proteaceae and is endemic to the west of Western Australia. It is a densely-branched shrub with tangled branchlets, divided leaves with linear lobes and clusters of pale greenish-white to light cream-coloured flowers.

Grevillea manglesii is a species of flowering plant in the family Proteaceae and is endemic to an area around Perth in Western Australia. It is a spreading shrub with divided leaves, with triangular or linear lobes, and clusters of cream-coloured or white flowers.

Grevillea paniculata, commonly known as kerosene bush, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a dense shrub with divided leaves, the lobes linear, and more or less spherical clusters of white to cream-coloured flowers.

Grevillea corrugata is a species of flowering plant in the family Proteaceae and is endemic to a restricted area in the south-west of Western Australia. It is a dense shrub with deeply divided leaves usually with three to five sharply-pointed, linear lobes, and white to cream-coloured flowers.

Grevillea acrobotrya is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a prickly, spreading to erect shrub with egg-shaped to trowel-shaped leaves with sharply-tipped lobes, and white to cream-coloured flowers with smaller leaves at the base.

Grevillea pectinata, commonly known as comb-leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south of Western Australia. It is a spreading shrub with divided, comb-like leaves and mauve-pink to red and cream-coloured to yellow flowers with a red to deep pink style.

Grevillea scapigera, commonly known as Corrigin grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a small area of the south-west of Western Australia. It is a prostrate to weakly ascending, suckering shrub with divided leaves, the end lobes broadly triangular and sharply-pointed, and spikes of white to cream-coloured flowers held above the foliage.

Grevillea leucoclada is a species of flowering plant in the family Proteaceae and is endemic to a small area in the west of Western Australia. It is a shrub with divided leaves, the lobes further divided, the end lobes linear or tapered, and cone-shaped clusters of white to cream-coloured 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 anethifolia, commonly known as spiny cream spider flower, is a species of flowering plant in the family Proteaceae and is endemic to continental Australia. It is an erect shrub with hairy branchlets, lobed leaves, the lobes sharply pointed, and white to pale yellow or cream-coloured flowers.

Grevillea erinacea 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 deeply-divided leaves with three to five linear lobes, rotated through 90°, and cream-coloured flowers with a white style.

Grevillea muelleri is a species of flowering plant in the family Proteaceae and is endemic to the a relatively small area of south-western Western Australia. It is a shrub with linear to narrowly oblong, or divided leaves with linear or narrowly egg-shaped lobes, more or less spherical clusters of white to cream-coloured flowers.

Grevillea murex is a species of flowering plant in the family Proteaceae and is endemic to a relatively small area of south-western Western Australia. It is a spreading, much-branched shrub with hand-shaped leaves and clusters of greenish-white to dull cream-coloured flowers.

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 prominens is a species of flowering plant in the family Proteaceae and is endemic to a restricted part of the South West region of Western Australia. It is a shrub with divided leaves, the end-lobes linear to narrow triangular, and creamy-white flowers usually projected beyond the foliage.

Grevillea roycei is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an open, erect to spreading shrub with divided leaves, the lobes linear to tapering, and more or less spherical clusters of cream-coloured and yellow flowers with a white style.

References

↑ "Grevillea rudis". Australian Plant Census. Retrieved 9 January 2023.
1 2 3 "Grevillea rudis". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 9 January 2023.
1 2 Wrigley, John W.; Fagg, Murray A. (1991). Banksias, waratahs & grevilleas : and all other plants in the Australian Proteaceae family. North Ryde, NSW, Australia: Angus & Robertson. p. 324. ISBN 0207172773.
1 2 3 "Grevillea rudis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
↑ "Grevillea rudis". APNI. Retrieved 9 January 2023.
↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 299. ISBN 9780958034180.
↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 9 January 2023.

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[APC-1] "Grevillea rudis". Australian Plant Census. Retrieved 9 January 2023.

[foa-2] 1 2 3 "Grevillea rudis". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 9 January 2023.

[Wrigley-3] 1 2 Wrigley, John W.; Fagg, Murray A. (1991). Banksias, waratahs & grevilleas : and all other plants in the Australian Proteaceae family. North Ryde, NSW, Australia: Angus & Robertson. p. 324. ISBN 0207172773.

[FB-4] 1 2 3 "Grevillea rudis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.

[APNI-5] "Grevillea rudis". APNI. Retrieved 9 January 2023.

[Sharr-6] Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 299. ISBN 9780958034180.

[codes-7] "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 9 January 2023.

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