Grevillea nana

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Grevillea nana
Grevillea nana.jpg
In the Royal Botanic Gardens, Cranbourne
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. nana
Binomial name
Grevillea nana

Grevillea nana, commonly known as dwarf grevillea, [2] 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, orange, yellow or red flowers.

Contents

Description

Grevillea nana is a prostrate to dense, mounded shrub that typically grows to 15–50 cm (5.9–19.7 in) high and 1–2 m (3 ft 3 in – 6 ft 7 in) wide. Its leaves are 100–300 mm (3.9–11.8 in) long and divided with 5 to 19 lobes, their size varying with subspecies. The flowers are arranged near the ground and at the base of the foliage on a rachis 60–170 mm (2.4–6.7 in) long, and are silky- to woolly-hairy on the outside, the colour varying with subspecies, the pistil 24–28 mm (0.94–1.10 in) long. Flowering time also varies with subspecies, and the fruit is a hairy follicle 15–19 mm (0.59–0.75 in) long. [2] [3]

Taxonomy

Grevillea nana was first formally described in 1943 by Charles Gardner in the Journal of the Royal Society of Western Australia from specimens collected by William Blackall between Koorda and Bencubbin. [4] [5] The specific epithet (nana) means "dwarf". [6]

In 1986, Donald McGillivray described two subspecies of G. nana in his book, New Names in Grevillea (Proteaceae), and the names are accepted by the Australian Plant Census:

Distribution and habitat

Subspecies abbreviata grows on shallow soil around granite outcrops in shrubland in the area around Wubin and about 30 km (19 mi) to the east, in the Avon Wheatbelt bioregion. Subspecies nana grows in open heath and shrubland from near Bullfinch to Mount Gibson and Manmanning in the Avon Wheatbelt, Coolgardie, Murchison and Yalgoo bioregions of south-western Western Australia.. [2]

Conservation status

Subspecies nana is listed as "not threatened" but subspecies abbreviata is listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [9] meaning that it is poorly known and from only one or a few locations. [13]

Related Research Articles

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

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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.

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

Grevillea neodissecta is a species of flowering plant in the family Proteaceae and is endemic to Western Australia. It is low, dense shrub with deeply divided leaves, the end lobes linear and sharply pointed, and small clusters of rose pink and white to cream-coloured flowers with a pinkish-red style.

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

Grevillea neorigida is a species of flowering plant in the family Proteaceae and is endemic to Western Australia. It is compact, spreading shrub with deeply-divided leaves, the end lobes linear and somewhat sharply-pointed, and clusters of creamy-brown to off-white flowers with a scarlet or orange-red style.

References

  1. "Grevillea nana". Australian Plant Census. Retrieved 20 July 2022.
  2. 1 2 3 "Grevillea nana". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. "Grevillea nana". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 20 July 2022.
  4. "Grevillea nana". APNI. Retrieved 20 July 2022.
  5. Gardner, Charles A. (1943). "Contributiones Florae Australiae Occidentalis, XI". Journal of the Royal Society of Western Australia. 27: 168. Retrieved 20 July 2022.
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 259. ISBN   9780958034180.
  7. "Grevillea nana subsp. abbreviata". Australian Plant Census. Retrieved 20 July 2022.
  8. "Grevillea nana subsp. abbreviata". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 20 July 2022.
  9. 1 2 "Grevillea nana subsp. abbreviata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  10. "Grevillea nana subsp. nana". Australian Plant Census. Retrieved 20 July 2022.
  11. "Grevillea nana subsp. nana". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 20 July 2022.
  12. "Grevillea nana subsp. nana". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  13. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 21 July 2022.