Olearia quercifolia

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Olearia quercifolia
Olearia quercifolia.jpg
In the Australian National Botanic Gardens
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Olearia
Species:
O. quercifolia
Binomial name
Olearia quercifolia
Synonyms [1]
  • Aster cuneatus Steud. nom. inval., pro syn.
  • Aster quercifoliusDC. nom. inval., pro syn.
  • Aster sinuatus A.Cunn. nom. inval., pro syn.
  • Olearia stellulata f. quercifolia(Sieber ex DC.) Siebert & Voss
  • Olearia stellulata var. quercifolia(Sieber ex DC.) Benth.

Olearia quercifolia, commonly known as oak-leaved olearia, [2] is a species of flowering plant in the family Asteraceae, and is endemic to the Blue Mountains in New South Wales. It is a shrub with elliptic to egg-shaped leaves with the narrower end towards the base, and white and yellow daisy flowers.

Contents

Description

Olearia quercifolia is a shrub that typically grows to a height of 2 m (6 ft 7 in). It has scattered elliptic to egg-shaped leaves with the narrower end towards the base arranged alternately along the stems, the leaves 10–50 mm (0.39–1.97 in) long and 7–25 mm (0.28–0.98 in) wide on a petiole up to 7 mm (0.28 in) long. The edges of the leaves are lobed and the lower surface is covered with yellow, woolly hairs. The heads or daisy-like "flowers" are arranged in leaf axils on a peduncle up to 50 mm (2.0 in) long, each head 21–30 mm (0.83–1.18 in) in diameter with 7 to 15 white ray florets and 18 to 29 yellow disc florets. Flowering occurs from July to December and the achenes are glabrous, the pappus with 27 to 42 long bristles. [2]

Taxonomy and naming

Olearia quercifolia was first formally described in 1836 by Augustin Pyramus de Candolle in his Prodromus Systematis Naturalis Regni Vegetabilis , from an unpublished description of specimens collected by Allan Cunningham. [3] [4] The specific epithet (quercifolia) means "oak-leaved". [5]

Distribution and habitat

Oak-leaved olearia grows in swampy places in the Blue Mountains of eastern New South Wales. [2]

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Olearia persoonioides is a species of flowering plant in the family Asteraceae and is endemic to Tasmania. It is a bushy shrub that typically grows to a height of 1.0–1.5 m. Its leaves are arranged alternately, oblong or egg-shaped with the narrower end towards the base, and 19–38 mm (0.75–1.50 in) long. They are shiny green on the upper surface and covered with silvery hairs on the lower side. The heads or daisy-like "flowers" are arranged in leafy panicles with 3 to 8 white ray florets surrounding 10 to 12 disc florets. Flowering occurs in January.

References

  1. 1 2 "Olearia quercifolia". Australian Plant Census. Retrieved 7 July 2022.
  2. 1 2 3 Lander, Nicholas S. "Oleari quercifolia". Royal Botanic Garden Sydney. Retrieved 7 July 2022.
  3. "Olearia quercifolia". APNI. Retrieved 7 July 2022.
  4. de Candolle, Augustin P.; de Candolle, Alphonse (1836). Prodromus systematis naturalis regni vegetabilis. Vol. 5. Paris. p. 272. Retrieved 7 July 2022.
  5. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 290. ISBN   9780958034180.