Grevillea rhizomatosa

Last updated

Grevillea rhizomatosa
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. rhizomatosa
Binomial name
Grevillea rhizomatosa

Grevillea rhizomatosa, commonly known as Gibraltar grevillea, [2] is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of north-eastern New South Wales. It is a spreading, bushy shrub with egg-shaped to almost round leaves and small clusters of green and pinkish-red flowers.

Contents

Description

Grevillea rhizomatosa is a spreading, bushy shrub that typically grows to 0.3–1 m (1 ft 0 in – 3 ft 3 in) high and forms root suckers. The leaves are egg-shaped with the narrower end towards the base, to oblong, 7–27 mm (0.28–1.06 in) long and 7–12 mm (0.28–0.47 in) wide. The upper surface of the leaves is concave and the lower surface is densely hairy. The flowers are arranged singly or in groups of 2 to 4 on the ends of branches on a hairy rachis 2–3 mm (0.079–0.118 in) long. The flowers are green at the base, pinkish red at the tip, often purplish black in the middle with a green style, the pistil 23–25 mm (0.91–0.98 in) long. Flowering mainly occurs from September to December but the plant is not known to set fruit or seed. [2] [3] [4]

Taxonomy

Grevillea rhizomatosa was first formally described in 1994 by Peter Olde and Neil Marriott in the journal Telopea from specimens collected by Olde in the Gibraltar Range National Park in 1992. [5] [6] The specific epithet (rhizomatosa) means "bearing a rhizome", referring to the species' root-suckering habit. [6]

Distribution and habitat

Gibraltar grevillea grows in densely shrubby forest on sandy soil, usually near creeks, and is endemic to the Gibraltar Range National Park. [2] [4] [6]

Conservation status

Grevillea rhizomatosa is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Biodiversity Conservation Act 2016 . The threats to the species include its small population size, inappropriate fire regimes, trampling by people, and track maintenance. [2] [3]

Related Research Articles

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

Grevillea preissii is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a mounded to spreading or dense, erect shrub, the leaves divided with 5 to 7 linear to more or less cylindrical lobes, and groups of reddish flowers arranged along one side of the flowering rachis.

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

Grevillea guthrieana, commonly known as Guthrie's grevillea, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is a spreading shrub with oblong leaves and clusters of two to six green and maroon flowers.

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

Grevillea agrifolia, the blue grevillea, is a species of flowering plant in the family Proteaceae and is native to the north of Western Australia and parts of the Northern Territory. It is a shrub or tree with narrowly oblong leaves with the narrower end towards the base, and creamy-yellow flowers.

<i>Grevillea laurifolia</i> Species of shrub in the family Proteaceae endemic to eastern Australia

Grevillea laurifolia, commonly known as laurel-leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is a prostrate, trailing shrub with egg-shaped, heart-shaped or round leaves, and clusters of reddish to deep maroon flowers.

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

Grevillea mollis, commonly known as soft grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of north-eastern New South Wales. It is an open, spreading shrub with oblong to elliptic leaves and loose clusters of bright scarlet red flowers.

Grevillea hockingsii is a species of flowering plant in the family Proteaceae and is endemic to south-eastern Queensland. It is an erect shrub with oblong to narrowly elliptic leaves and clusters of reddish-pink flowers.

Grevillea cyranostigma, commonly known as Carnarvon grevillea or green grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the Carnarvon Range and adjacent areas of central Queensland. It is a spreading shrub with woolly-hairy to silky-hairy branchlets, narrowly oblong leaves, and pale green flowers.

Grevillea kedumbensis is a species of flowering plant in the family Proteaceae and is endemic to a restricted locale in the Great Dividing Range in central New South Wales in Australia. It is a twiggy shrub with narrowly elliptic to egg-shaped leaves with the narrower end towards the base, and clusters of hairy green to cream-coloured flowers.

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

Grevillea dryandroides, commonly known as phalanx grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. A diffuse, clumping shrub, it often forms suckers and has divided leaves with up to 35 pairs of leaflets, and groups of red to pinkish flowers on an unusually long, trailing peduncle.

<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 raybrownii</i> Species of shrub in the family Proteaceae endemic to New South Wales, Australia

Grevillea raybrownii is a flowering shrub in the family Proteaceae and is endemic to New South Wales. It has divided, pointed leaves and dense clusters of flowers usually at the end of branches.

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

Grevillea quadricauda, commonly known as four-tailed grevillea, is a species of flowering plant in the family Proteaceae and is endemic to eastern Australia. It is an erect, dense, bushy shrub with narrowly egg-shaped to elliptic leaves and small, loose clusters of green and pinkish-red flowers.

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

Grevillea masonii, commonly known as Mason's grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of New South Wales. It is a low-growing shrub with egg-shaped to elliptic leaves, and red and green flowers with a green style.

Grevillea granulifera is a species of flowering plant in the family Proteaceae and is endemic to eastern New South Wales. It is a shrub with narrowly elliptic leaves and clusters of pinkish-red and creamy-white flowers.

Grevillea banyabba, commonly known as Banyabba grevillea, is a species of flowering plant in the family Proteaceae and is endemic to north-eastern New South Wales. It is an open shrub with simple, narrowly egg-shaped leaves with the narrower end towards the base, and red and green flowers.

Grevillea crowleyae 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, spreading shrub with deeply divided leaves usually with three to seven linear lobes, and grey, pale yellowish or greenish flowers with a maroon-black style.

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

Grevillea delta is a species of flowering plant in the family Proteaceae and is endemic to restricted area in the south-west of Western Australia. It is a bushy, spreading shrub with hairy branchlets, divided leaves with linear lobes, and groups of red flowers with a red, green-tipped style.

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

Grevillea hislopii 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 dense, single-stemmed shrub with linear to narrow elliptic leaves and clusters of hairy, whitish-grey flowers.

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

Grevillea pythara, commonly known as Pythara grevillea, 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 low, suckering shrub with linear to narrowly elliptic leaves and small groups of red flowers.

References

  1. "Grevillea rhizomatosa". Australian Plant Census. Retrieved 20 December 2022.
  2. 1 2 3 4 "Grevillea rhizomatosa". New South Wales Government Office of Environment and Heritage. Retrieved 20 December 2022.
  3. 1 2 Makinson, Robert O. "Grevillea rhizomatosa". Royal Botanic Garden Sydney. Retrieved 21 December 2022.
  4. 1 2 "Grevillea rhizomatosa". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 21 December 2022.
  5. "Grevillea rhizomatosa". APNI. Retrieved 20 December 2022.
  6. 1 2 3 Olde, Peter M.; Marriott, Neil R. (1994). "A taxonomic revision of Grevillea arenaria and Grevillea obtusiflora (Proteaceae: Grevilleoideae)". Telopea. 54: 724–725. Retrieved 21 December 2022.