Grevillea pilosa

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Grevillea pilosa
Grevillea pilosa.jpg
Subspecies pilosa in the Australian National Botanic Gardens
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. pilosa
Binomial name
Grevillea pilosa
Synonyms [1]

Grevillea rufa C.A.Gardner

Subspecies redacta in Maranoa Gardens Grevillea pilosa subsp. redacta.jpg
Subspecies redacta in Maranoa Gardens

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.

Contents

Description

Grevillea pilosa is a dense, spreading to prostrate shrub that typically grows to a height of 0.5–2 m (1 ft 8 in – 6 ft 7 in) and does not form a lignotuber. Its leaves are wedge-shaped to oblong or egg-shaped, 15–50 mm (0.59–1.97 in) long and 10–60 mm (0.39–2.36 in) wide with sharply pointed, more or less triangular teeth or lobes 2–7 mm (0.079–0.276 in) long and 2–4 mm (0.079–0.157 in) wide. The edges of the leaves are turned down, the lower surface covered with silky hairs. The flowers are arranged in more or less spherical clusters on a rachis 2–7 mm (0.079–0.276 in) long and are pale pink to rose-pink or red, the pistil 20–27 mm (0.79–1.06 in) long. Flowering time varies with subspecies and the fruit is a more or less spherical to oblong or oval follicle about 12 mm (0.47 in) long. [2] [3] [4]

Taxonomy

This grevillea was first formally described in 1942 by Charles Gardner who gave it the name Grevillea rufa in the Journal of the Royal Society of Western Australia but the name was illegitimate because it had been used for a different species (Grevillea rufa (Warb.) Sleumer ), now known as Finschia rufa . [5] [6] [7]

In 1965, Alex George changed the name to Grevillea pilosa in the Western Australian Naturalist . [8] The specific epithet (pilosa) means "hairy", referring to the flowers. [9]

In 1994, Peter Olde and Neil Marriott described G. pilosa subsp. redacta and the name, and that or the autonym are accepted by the Australian Plant Census:

Distribution and habitat

This grevillea grows in mallee shrubland or heath, [2] [3] subspecies pilosa between Newdegate, Mount Holland and Ravensthorpe in the Coolgardie, Esperance Plains and Mallee bioregions [11] [12] and subsp. redacta further north, in a small area just north of Lake Cronin to north of Mount Holland in the Coolgardie and Mallee bioregions of south-western Western Australia. [14] [15]

Conservation status

Subspecies pilosa is listed as "not threatened" [12] but subsp. redacta is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [15] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [16]

Related Research Articles

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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.

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

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

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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 diversifolia</i> Species of shrub in the family Proteaceae native to Western Australia

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

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

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.

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

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.

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

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

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

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

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

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<i>Prostanthera semiteres</i> Species of flowering plant

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

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

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<i>Daviesia sarissa</i> Species of legume

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References

  1. 1 2 "Grevillea pilosa". Australian Plant Census. Retrieved 18 August 2022.
  2. 1 2 "Grevillea pilosa". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 19 August 2022.
  3. 1 2 "Grevillea pilosa". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Grevillea pilosa". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  5. Gardner, Charles A. (1943). "Contributiones Florae Australiae Occidentalis, XI". Journal of the Royal Society of Western Australia. 27: 168. Retrieved 19 August 2022.
  6. "Grevillea rufa". APNI. Retrieved 19 August 2022.
  7. "Grevillea rufa". Plants of the World Online. Retrieved 19 August 2022.
  8. "Grevillea pilosa". APNI. Retrieved 19 August 2022.
  9. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 277. ISBN   9780958034180.
  10. "Grevillea pilosa subsp. pilosa". Australian Plant Census. Retrieved 18 August 2022.
  11. 1 2 "Grevillea pilosa subsp. pilosa". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 19 August 2022.
  12. 1 2 3 "Grevillea pilosa subsp. pilosa". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  13. "Grevillea pilosa subsp. redacta". Australian Plant Census. Retrieved 18 August 2022.
  14. 1 2 "Grevillea pilosa subsp. redacta". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 19 August 2022.
  15. 1 2 3 "Grevillea pilosa subsp. redacta". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  16. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 19 August 2022.