Grevillea tenuiloba

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Grevillea tenuiloba
Grevillea tenuiloba Fagg.jpg
Status DECF P3.svg
Priority Three — Poorly Known Taxa (DEC) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. tenuiloba
Binomial name
Grevillea tenuiloba

Grevillea tenuiflora, commonly known as amber grevillea, [1] is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low, spreading shrub with pinnatipartite leaves with 5 to 11 linear to cylindrical lobes, and clusters of orange flowers often borne close to the ground.

Contents

Description

Grevillea tenuiflora is a low, spreading shrub that typically grows to a height of 40–100 cm (16–39 in) and up to 3 m (9.8 ft) wide. Its leaves are pinnatipartite, 15–50 mm (0.59–1.97 in) long usually with 5 to 11 linear to more or less cylindrical lobes 2–25 mm (0.079–0.984 in) long, 0.6–1.3 mm (0.024–0.051 in) wide and sharply pointed. The leaf rachis is strongly turned down, and the edges of the leaves are rolled under, enclosing most of the lower surface. The flowers are pale to rich orange, often borne on or close to the ground, on one side of floral rachis 55–135 mm (2.2–5.3 in) long, the pistil 23–34 mm (0.91–1.34 in) long. Flowering occurs from August to October, and the fruit is a woolly-hairy follicle 11–14 mm (0.43–0.55 in) long. [1] [4]

Taxonomy

Grevillea tenuiflora was first formally described in 1933 by Charles Gardner in the Journal of the Royal Society of Western Australia from specimens collected in 1932 near Dandaragan by William Blackall. [5] [6] The specific epithet (tenuiloba) is derived from the Latin word tenuis, meaning narrow and the word lobus meaning lobe in reference to the shape of the leaf lobes. [7]

Distribution and habitat

Amber grevillea grows in Melaleuca shrubland between Wongan Hills and Jibberding near Wubin in the Avon Wheatbelt bioregion of south-western Western Australia. [4] [1]

Conservation status

Grevillea tenuiloba is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [1] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [8] It is also listed as Critically Endangered by the International Union for Conservation of Nature because of a predicted population decline of at least 80% over a period of the last 75 years due to the destruction of a majority of its habitat. The population is now predominantly restricted to roadside verges impacted by clearance and weed invasion. [2]

Use in horticulture

This grevillea can be grown from scarified seed or from firm cuttings of the current season's growth. It is best suited to a dry summer climate, unless grafted on to a hardy rootstock. [7]

See also

Related Research Articles

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

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

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

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

Grevillea baxteri, commonly known as the Cape Arid grevillea, is a flowering plant of the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect to spreading shrub with pinnatipartite leaves and greenish to fawn or creamy-orange flowers.

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

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

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<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.

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

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Grevillea secunda is a species of flowering plant in the family Proteaceae and is endemic to inland Western Australia. It is a spreading shrub with divided leaves, the end lobes cylindrical and sharply pointed, and clusters of pinkish-red flowers with a red style arranged on one side of the floral rachis.

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

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

Grevillea tenuiflora, commonly known as tassel grevillea, is species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a spreading to weakly erect shrub with divided leaves, the end lobes more or less triangular and sharply pointed, and clusters of whitish and violet-tinged flowers.

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

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

Grevillea wittweri is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a shrub with pinnatipartite leaves, and clusters of greenish to fawn flowers with a crimson style.

References

  1. 1 2 3 4 5 "Grevillea tenuiloba". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. 1 2 Keighery, G.; Makinson, R.; Monks, L. (2020). "Grevillea tenuiloba". IUCN Red List of Threatened Species . 2020: e.T113083917A113308656. doi: 10.2305/IUCN.UK.2020-2.RLTS.T113083917A113308656.en . Retrieved 22 December 2023.
  3. "Grevillea tenuiloba". Australian Plant Census. Retrieved 19 March 2023.
  4. 1 2 "Grevillea tenuiloba". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 19 March 2023.
  5. "Grevillea tenuiloba". APNI. Retrieved 19 March 2023.
  6. Gardner, Charles A. (1933). "Contributiones Florae Australiae Occidentalis, VIII". Journal of the Royal Society of Western Australia. 19: 81. Retrieved 19 March 2023.
  7. 1 2 "Grevillea tenuiloba". Australian Native Plants Society. 2008. Retrieved 19 March 2023.
  8. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 19 March 2023.