Olearia gravis

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Olearia gravis
Olearia gravis.jpg
In the Australian National Botanic Gardens
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Olearia
Species:
O. gravis
Binomial name
Olearia gravis
Synonyms [1]
  • Aster gravisF.Muell.
  • Olearia gravisF.Muell. nom. inval., pro syn.

Olearia gravis is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a shrub with elliptic or egg-shaped leaves and white and yellow, daisy-like inflorescences.

Contents

Description

Olearia gravis is a shrub that typically grows to a height of up to 1.6 m (5 ft 3 in). Its leaves are arranged alternately along the branchlets, elliptic or egg-shaped, 15–48 mm (0.59–1.89 in) long and 5–15 mm (0.20–0.59 in) wide on a petiole up to 10 mm (0.39 in) long and with small point along the edges. The heads or daisy-like "flowers" are arranged singly on the ends of branches, and are 27–39 mm (1.1–1.5 in) in diameter on a peduncle up to 65 mm (2.6 in) long. Each head has 20 to 22 white ray florets surrounding 17 to 49 yellow disc florets. Flowering occurs from August to November and the fruit is a glabrous achene, the pappus with 31 to 39 bristles. [2]

Taxonomy

This daisy-bush was first formally described in 1865 by Ferdinand von Mueller who gave it the name Aster gravis in his Fragmenta Phytographiae Australiae from specimens collected near Tenterfield. [3] [4] In 1867, George Bentham changed the name to Olearia glandulosa in Flora Australiensis . [5] The specific epithet (gravis) means "heavy" or "weighty". [6]

Distribution and habitat

Olearia gravis grows in forest in mountain areas from south-east Queensland to the Blue Mountains in New South Wales. [2] [7]

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<i>Olearia megalophylla</i> Species of shrub

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<i>Olearia viscidula</i> Species of flowering plant

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<i>Olearia asterotricha</i> Species of shrub

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<i>Olearia homolepis</i> Species of flowering plant

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<i>Olearia ballii</i> Species of shrub

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<i>Olearia mooneyi</i> Species of shrub

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<i>Olearia magniflora</i> Species of shrub

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<i>Olearia oppositifolia</i> Species of shrub

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<i>Olearia exiguifolia</i> Species of Asteraceae

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Olearia cassiniae is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is an erect or spreading shrub that typically grows to a height of 0.7–1.8 m and produces white daisy-like inflorescences, mostly between February and April. The species was first formally described in 1865 by Ferdinand von Mueller who gave it the name Aster cassiniae in Fragmenta Phytographiae Australiae from specimens collected by George Maxwell. In 1867, George Bentham changed the name to Olearia cassiniae in Flora Australiensis. The specific epithet (cassiniae) is a reference to the genus Cassinia.

<i>Olearia ferresii</i> Species of Asteraceae

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<i>Olearia frostii</i> Species of shrub

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<i>Olearia nernstii</i> Species of shrub

Olearia nernstii is a species of flowering plant in the family Asteraceae and is endemic to eastern Australia. It is a shrub with scattered egg-shaped to elliptic leaves with toothed or prickly edges, and white and yellow, daisy-like inflorescences.

<i>Olearia xerophila</i> Species of plant

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References

  1. 1 2 "Olearia gravis". Australian Plant Census. Retrieved 22 April 2019.
  2. 1 2 Lander, Nicholas S. "Olearia gravis". Royal Botanic Garden Sydney. Retrieved 17 April 2022.
  3. "Aster gravis". APNI. Retrieved 22 April 2022.
  4. von Mueller, Ferdinand (1865). Fragmenta Phytographiae Australiae. Vol. 5. Melbourne: Victorian Government Printer. p. 82. Retrieved 22 April 2022.
  5. "Olearia gravis". APNI. Retrieved 22 April 2022.
  6. William T. Stearn (1992). Botanical Latin. History, grammar, syntax, terminology and vocabulary (4th ed.). Portland, Oregon: Timber Press. p. 422.
  7. "Olearia gravis". Atlas of Living Australia. Retrieved 22 April 2022.