Olearia ramosissima

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Olearia ramosissima
Olearia ramosissima.jpg
In 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. ramosissima
Binomial name
Olearia ramosissima
Synonyms [1]
  • Eurybia ramosissimaDC.
  • Shawia ramosissima(DC.) Sch.Bip.

Olearia ramosissima, commonly known as much-branched daisy bush, [2] is a species of flowering plant in the family Asteraceae and is endemic to continental Australia. It is a straggly shrub with densely-crowded, elliptic, egg-shaped or triangular leaves, and blue to violet and blue or yellow, daisy-like inflorescences.

Contents

Description

Olearia ramosissima is a straggly shrub that typically grows to a height of up to about 1.3 m (4 ft 3 in). Its leaves are arranged alternately along the branches, but densely-crowded, elliptic, triangular or egg-shaped with the narrower end towards the base, 0.5–5 mm (0.020–0.197 in) long, 0.3–2 mm (0.012–0.079 in) wide with the edges rolled under. The upper surface of the leaves is minutely pimply, the lower surface covered with greyish, woolly hairs. The heads or daisy-like "flowers" are usually arranged singly on the ends of branches and are sessile, 22–27 mm (0.87–1.06 in) in diameter with 8 to 13 blue to violet ray florets, surrounding 11 to 15 blue or yellow disc florets. Flowering occurs from June to August and the fruit is a silky-hairy achene, the pappus with 27 to 47 bristles. [2] [3] [4]

Taxonomy

This daisy was first formally described in 1836 by Augustin Pyramus de Candolle who gave it the name Eurybia ramosissima in his Prodromus Systematis Naturalis Regni Vegetabilis . [5] [6] In 1867, George Bentham changed the name to Olearia ramosissima in Flora Australiensis . [7] The specific epithet (ramosissima) means "much-branched". [8]

Distribution and habitat

Much-branched daisy bush has a disjunct distribution, occurring in the south-west of Western Australia, and in south-east Queensland and northern New South Wales in eastern Australia. In eastern Australia it grows in forest, mainly on the slopes and tablelands north from Narrabri. [3] In Western Australia it grows on undulating plains on clay flats in the Coolgardie, Esperance Plains, Hampton and Mallee bioregions in the south of that state. [2]

Related Research Articles

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

Olearia axillaris, commonly known as coastal daisy-bush, coast daisy-bush or coastal daisybush is a species of flowering plant in the family Asteraceae and is endemic to coastal areas of Australia. It is an erect, bushy shrub with densely cottony-hairy branchlets, aromatic, linear to narrowly elliptic or narrowly lance-shaped to egg-shaped leaves with the narrower end towards the base and small white and yellow, daisy-like inflorescences.

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

Olearia pimeleoides, commonly known as pimelea daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to southern continental Australia. It is an erect shrub with elliptic, linear or lance-shaped leaves, and white and pale yellow, daisy-like inflorescences.

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

Olearia ramulosa, commonly known as twiggy daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a shrub with narrowly elliptic, linear or narrowly egg-shaped leaves, and pale blue, mauve or white and yellow, daisy-like inflorescences.

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

Olearia erubescens, commonly known as moth daisy-bush or pink-tip daisy-bush, is a species of flowering plant in the family Asteraceae. It is a shrub with stiff, prickly leaves and white "daisy" flowers, growing up to 2 metres high.

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

Olearia elliptica, commonly known as the sticky daisy bush, is a shrub in the family Asteraceae and is native to New South Wales and Queensland in eastern Australia. It has scattered, sticky leaves and white flowers in summer and autumn.

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

Olearia decurrens, commonly known as the clammy daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to arid, inland Australia. It is a glabrous, sticky, twiggy shrub with narrow egg-shaped to linear leaves sometimes with toothed edges, and white and yellow, daisy-like inflorescences.

<i>Hovea chorizemifolia</i> Species of legume

Hovea chorizemifolia, commonly known as the holly-leaved hovea, is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a small, upright shrub with prickly, green leaves and blue-purple pea flowers.

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

Olearia ledifolia, commonly known as rock daisy bush, is a species of flowering plant of the family Asteraceae. It is endemic to Tasmania and found at higher altitudes where it grows as a low, compact bush with tough, leathery leaves and small white and yellow daisy-like "flowers" in summer.

<i>Gompholobium confertum</i> Species of flowering plant

Gompholobium confertum is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It a shrub that typically grows to a height of .15–1.2 m and flowers from August to December or January to March producing purple-blue, pea-like flowers. This species was first formally described in 1825 by Augustin Pyramus de Candolle who gave it the name Burtonia conferta in Prodromus Systematis Naturalis Regni Vegetabilis. In 1987 Michael Douglas Crisp changed the name to Gompholobium confertum. The specific epithet (confertum) means "crowded", referring to the foliage.

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

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

Olearia elaeophila is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is a small shrub with scattered linear leaves, and white or blue and yellow, daisy-like inflorescences.

Olearia hygrophila, commonly known as swamp daisy or water daisy, is a species of flowering plant in the family Asteraceae and is endemic to a restricted part of North Stradbroke Island in south-eastern Queensland. It is a shrub with slender stems, linear leaves and white and yellow, daisy-like inflorescences.

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.

<i>Sprengelia monticola</i> Species of plant

Sprengelia monticola, commonly known as rock sprengelia, is a species of flowering plant of the family Ericaceae, and is endemic to the Blue Mountains in eastern New South Wales. It is an open or low-lying shrub with egg-shaped to lance-shaped leaves, and white flowers arranged singly in leaf axils.

<i>Leucopogon capitellatus</i> Species of plant

Leucopogon capitellatus is a species of flowering plant in the heath family Ericaceae and is endemic to the south-west of Western Australia. It is an erect, more or less glabrous shrub that typically grows to a height of 0.2–1 m. It has linear to lance-shaped leaves longer than about 12 mm (0.47 in) long, tapering to a rigid point on the tip. The flowers are borne on short spikes on the ends of branches or in leaf axils on short side branches, with small bracts and bracteoles about half as long as the sepals. The sepals are broad, about 2 mm (0.079 in) long and the petals white and about 4 mm (0.16 in) long, the petal lobes longer than the petal tube.

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

Olearia quercifolia, commonly known as oak-leaved olearia, 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.

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

Olearia rosmarinifolia is a species of flowering plant in the family Asteraceae and is endemic to eastern Australia. It is a shrub with scattered linear leaves, and white and yellow, daisy-like inflorescences.

<i>Leucopogon cymbiformis</i> Species of shrub

Leucopogon cymbiformis is a flowering plant in the family Ericaceae and is endemic to the south-west of Western Australia. It is a bushy or wiry shrub that typically grows to a height of 30–50 cm (12–20 in) and has more or less glabrous branches. Its leaves are erect, linear to lance-shaped and sharply-pointed, mostly 2–4 mm (0.079–0.157 in) long. The flowers are arranged in short spikes, sometimes of only two or three flowers, with lance-shaped, leaf-like bracts, and bracteoles half as long as the sepals at the base of the spikes. The sepals are 2.5–3.0 mm (0.098–0.118 in) long and the petals slightly longer than the sepals, the lobes shorter than the petal tube.

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

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

References

  1. 1 2 "Olearia ramosissima". Australian Plant Census. Retrieved 9 July 2022.
  2. 1 2 3 "Olearia ramosissima". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 Lander, Nicholas S. "Olearia ramosissima". Royal Botanic Garden Sydney. Retrieved 9 July 2022.
  4. Archer, William. "Olearia ramosissima". Esperance Wildflowers. Retrieved 9 July 2022.
  5. "Eurybia ramosissima". APNI. Retrieved 9 July 2022.
  6. de Candolle, Augustin P. (1836). Prodromus Systematis Naturalis Regni Vegetabilis. Vol. 5. Paris. p. 270. Retrieved 9 July 2022.
  7. "Olearia ramosissima". APNI. Retrieved 9 July 2022.
  8. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 291. ISBN   9780958034180.