Grevillea angustiloba

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Grevillea angustiloba
Grevillea ilicifolia subsp angustiloba South-east corner ELD DSC 6365.jpg
Inflorescence and foliage
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. angustiloba
Binomial name
Grevillea angustiloba
Subspecies
  • G. angustiloba subsp. angustiloba
  • G. angustiloba subsp. wirregaensis

Grevillea angustiloba, commonly known as dissected holly-leaf grevillea, [3] is a species of flowering plant in the family Proteaceae and is endemic to southern continental Australia. It is a prostrate, low-lying or erect shrub with deeply divided pinnate leaves and usually red, sometimes orange or pale yellow flowers.

Description

Grevillea angustiloba is a prostrate to low-lying or erect shrub that grows up to 0.3–2 m (1 ft 0 in – 6 ft 7 in) high, 3 m (9.8 ft) wide and has hairy stems. The leaves are 35–117 mm (1.4–4.6 in) long and 19–110 mm (0.75–4.33 in) wide in outline, deeply divided, pinnate or bipinnate with up to thirty lobes, the end lobes mostly linear, 7–42 mm (0.28–1.65 in) long and 1–4 mm (0.039–0.157 in) wide. The flowers are arranged along an erect rachis 20–50 mm (0.79–1.97 in) long, and are red, sometimes orange or pale yellow, the pistil 19.5–25 mm (0.768–0.984 in) long, usually with a pink to red style. Flowering mainly occurs from February to March and the fruit is a follicle 11–16 mm (0.43–0.63 in) long. [4]

Taxonomy

Dissected holly-leaf grevillea was first formally described in 1868 by Ferdinand von Mueller, who gave it the name Grevillea ilicifolia var. angustiloba in his Fragmenta Phytographiae Australiae . [5] [6]

In 2004, Trisha L. Downing, Marco Duretto and Pauline Ladiges raised the variety to species status as G. angustiloba and described two subspecies in Australian Systematic Botany , and the names of the subspecies are accepted by the Australian Plant Census:

Distribution and habitat

Grevillea angustiloba grows in mallee scrub, heath and Melaleuca uncinata communities mainly in the Little Desert region of western Victoria and in south-eastern South Australia. [3] [4] [11]

Conservation status

Grevillea angustiloba is listed as Critically Endangered on the IUCN Red List of Threatened Species. It has a severely restricted distribution, a small population exceeding no more than 250 mature individuals and a projected population reduction of greater than 25% within the next generational length of 30-50 years. The main threats to this species include land clearing for agriculture, salinization and droughts. [1]

Related Research Articles

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

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<i>Goodenia macmillanii</i> Species of flowering plant

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<i>Grevillea pachylostyla</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

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

Grevillea ilicifolia, commonly known as holly grevillea or holly bush, is a species of flowering plant in the family Proteaceae and is endemic to southern continental Australia. It is a spreading to prostrate shrub with holly-like leaves with sharply-pointed triangular to egg-shaped teeth or lobes, and clusters of green to cream-coloured and mauve flowers with a pink to red style.

<i>Grevillea miqueliana</i> Species of shrub in the family Proteaceae endemic to Victoria, Australia

Grevillea miqueliana is a species of flowering plant in the family Proteaceae and is endemic to Victoria in Australia. It is an erect to spreading shrub with elliptic to egg-shaped leaves and clusters of red and orange or yellow flowers.

<i>Darwinia micropetala</i> Species of plant

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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 scortechinii</i> Species of shrub in the family Proteaceae endemic to Queensland and New South Wales Australia

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

Grevillea ramosissima, commonly known as fan grevillea, is a species of flowering plant in the family Proteaceae and is endemic to eastern continental Australia. It is a low, spreading shrub with lobed leaves and clusters of cream-coloured to pale yellow flowers.

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<i>Grevillea commutata</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

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

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.

<i>Kennedia lateritia</i> Species of legume

Kennedia lateritia, commonly known as Augusta kennedia, is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a woody climber with twining stems, trifoliate leaves and orange-red and yellow flowers arranged in groups of up to twenty-four.

<i>Bossiaea decumbens</i> Species of legume

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<i>Brachyloma depressum</i> Species of plant

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<i>Styphelia exarrhena</i> Species of flowering plant

Styphelia exarrhena, commonly known as desert styphelia, is a species of flowering plant in the heath family Ericaceae and is endemic to southern continental Australia. It is an erect shrub with erect or spreading egg-shaped leaves, and cream-coloured, tube-shaped flowers arranged singly or in pairs in upper leaf axils.

References

  1. 1 2 Makinson, R.; Cameron, D.; Olde, P. (2020). "Grevillea angustiloba". IUCN Red List of Threatened Species . 2020: e.T112643394A113309155. doi: 10.2305/IUCN.UK.2020-2.RLTS.T112643394A113309155.en . Retrieved 20 December 2023.
  2. "Grevillea angustiloba". Australian Plant Census. Retrieved 24 November 2021.
  3. 1 2 "Grevillaea angustiloba subsp. angustiloba". Seeds of South Australia. Retrieved 24 November 2021.
  4. 1 2 Stajsic, Val. "Grevillea angustiloba". Royal Botanic Gardens Victoria. Retrieved 24 November 2021.
  5. "Grevillea ilicifolia var. angustiloba". APNI. Retrieved 24 November 2020.
  6. von Mueller, Ferdinand (1868). Fragmenta Phytographiae Australiae. Vol. 6. Melbourne: Victorian Government Printer. p. 212. Retrieved 24 November 2021.
  7. "Grevillea angustiloba subsp. angustiloba". Australian Plant Census. Retrieved 24 November 2021.
  8. Stajsic, Val. "Grevillea angustiloba subsp. angustiloba". Royal Botanic Gardens Victoria. Retrieved 24 November 2021.
  9. "Grevillea angustiloba subsp. wirregaensis". Australian Plant Census. Retrieved 24 November 2021.
  10. Stajsic, Val. "Grevillea angustiloba subsp. wirregaensis". Royal Botanic Gardens Victoria. Retrieved 24 November 2021.
  11. "Grevillaea angustiloba subsp. wirregaensis ". Seeds of South Australia. Retrieved 24 November 2021.