Olearia ramulosa

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Olearia ramulosa
Olearia ramulosa.jpg
In Box Hill South, Victoria
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. ramulosa
Binomial name
Olearia ramulosa
Synonyms [1]
List
    • Aster aculeatusLabill.
    • Aster benthami F.Muell. orth. var.
    • Aster benthamiiF.Muell.
    • Aster ramulosusLabill.
    • Diplostephium aculeatum(Labill.) Nees
    • Diplostephium ramulosum(Labill.) Nees
    • Eurybia aculeata(Labill.) DC.
    • Eurybia collina Sond. nom. inval., pro syn.
    • Eurybia epileiaDC.
    • Eurybia ramulosa(Labill.) DC.
    • Eurybia ramulosa var. aculeata(Labill.) Hook.f.
    • Eurybia ramulosa var. densaHook.f.
    • Eurybia ramulosa var. elongataHook.f.
    • Eurybia ramulosa var. ericaefoliaHook.f. orth. var.
    • Eurybia ramulosa var. ericifoliaHook.f.
    • Eurybia ramulosa var. floribundaHook.f.
    • Eurybia ramulosa var. glabrataSond.
    • Eurybia ramulosa var. grandifloraA.D.Chapm. orth. var.
    • Eurybia ramulosa var. grandifoliaHook.f.
    • Eurybia ramulosa var. laxaHook.f.
    • Eurybia ramulosa(Labill.) DC. var. ramulosa
    • Olearia hookeri var. microcephalaBenth.
    • Olearia ramulosa(Labill.) Benth. f. ramulosa
    • Olearia ramulosa var. communisBenth. nom. inval.
    • Olearia ramulosa var. longisetosa J.H.Willis
    • Olearia ramulosa var. microcephala(Benth.) J.H.Willis
    • Olearia ramulosa(Labill.) Benth. var. ramulosa
    • Olearia ramulosa var. rigidaJ.H.Willis
    • Olearia ramulosa var. stricta(Benth.) J.H.Willis
    • Olearia ramulosa var. tomentosaJ.H.Willis
    • Olearia strictaBenth.
    • Shawia aculeata(Labill.) Sch.Bip.
    • Shawia epileia(DC.) Sch.Bip.
    • Shawia ramulosa(Labill.) Sch.Bip.

Olearia ramulosa, commonly known as twiggy daisy-bush, [2] 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.

Contents

Description

Olearia ramulosa is a shrub that typically grows to a height of 1.6 m (5 ft 3 in). Its leaves are alternately arranged along the stems, narrowly elliptic, linear or narrowly egg-shaped with the narrower end towards tha base, 2–8 mm (0.079–0.315 in) long and 0.8–2.5 mm (0.031–0.098 in) wide with the edges rolled under. The upper surface of the leaf is covered with minute pimples and the lower surface is covered with grey, woolly hairs. The heads or daisy-like "flowers" are arranged in leaf axils or on the ends of branches and are sessile or on a peduncle up to 14 mm (0.55 in) long. The heads are 10–20 mm (0.39–0.79 in) in diameter with a conical involucre 3–6 mm (0.12–0.24 in) long at the base. Each head has 2 to 13 pale blue, mauve or white ray florets surrounding 3 to 13 yellow disc florets. Flowering occurs from October to May and the fruit is a silky-hairy achene, the pappus with 22 to 41 bristles. [2] [3] [4] [5]

Taxonomy

Jacques Labillardière described the twiggy daisy bush as Aster ramulosus in 1806, in volume 2 of his Novae Hollandiae Plantarum Specimen , from material collected in Tasmania. [6] [7]

In 1867, George Bentham changed the name to Olearia ramulosus in Flora Australiensis. [8] [9] The specific epithet (ramulosus) means "bearing branches". [10]

Other botanists gave the species other names, but the name accepted by the Australian Plant Census is Olearia ramulosa. Those other botanists included German botanist Christian Gottfried Daniel Nees von Esenbeck who changed Labillardière's Aster ramulosus to Diplostephium ramulosum in 1832, [11] [12] and Swiss botanist Augustin Pyramus de Candolle who changed Labillardière's name to Eurybia ramulosa in 1836. [13] [14]

Alternative common names are oily bush and water cypress. [15]

Distribution and habitat

Olearia ramulosa grows in forest, woodland and scrub, and is widespread and common from south-eastern Queensland, through New South Wales, the Australian Capital Territory and eastern Victoria to south-eastern South Australia and Tasmania. [2] [3] [5] [16]

Ecology

The plant is eaten by caterpillars of the moth species Amelora milvaria . [17] Bees, beetles, and less commonly flies and wasps have been recorded visiting flowers in a Tasmanian field study. [18]

Use in horticulture

Olearia ramulosa can be propagated by seeds or cuttings of new growth that has hardened. It can be grown in dry or temperate climates and is frost-hardy in sunny or part-shaded spots. Pruning can invigorate it and it can be grown as a low hedge. [4]

Related Research Articles

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

Olearia teretifolia, commonly known as cypress daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern continental Australia. It is a slender, erect to spreading shrub with more or less sessile, linear leaves pressed against the stem, and white and yellow, daisy-like inflorescences.

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

Olearia argophylla, commonly known as musk daisy-bush, native musk or silver shrub, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a shrub or tree with silvery branchlets, egg-shaped to elliptic leaves, and white and yellow, daisy-like inflorescences.

<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 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 myrsinoides</i> Species of shrub

Olearia myrsinoides, commonly known as silky daisy-bush or blush daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a spreading shrub with hairy branchlets, egg-shaped to elliptic leaves with toothed edges, and white and yellow or mauve, daisy-like inflorescences.

<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>Olearia ciliata</i> Species of shrub

Olearia ciliata, commonly known as the fringed daisy bush, is a small shrub with large clusters of bright purple-blue flowers on a single stem.

<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.

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.

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

Olearia glandulosa, commonly known as swamp daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a slender, erect, glabrous shrub with sticky, narrowly linear leaves and white or pale blue and yellow, daisy-like inflorescences.

Olearia hookeri, commonly known as crimsontip daisybush, is a species of flowering plant in the family Asteraceae and is endemic to Tasmania. It is a sticky shrub with small, narrowly linear leaves and white to bluish-purple 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.

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

Olearia lepidophylla, commonly known as club-moss daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to southern Australia. It is a rigid, erect to spreading shrub with tiny oblong to egg-shaped 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.

Olearia picridifolia, commonly known as rasp scrub-daisy, is a species of flowering plant in the family Asteraceae and is endemic to southern continental Australia. It is a low, spreading shrub with narrowly egg-shaped or narrowly elliptic leaves, and blue, mauve or white and yellow, daisy-like inflorescences.

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

Olearia ramosissima, commonly known as much-branched daisy bush, 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.

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

Olearia rudis, commonly known as azure daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to eastern Australia. It is a usually short-lived shrub with crowded elliptic or egg-shaped leaves, and pale blue, mauve or purple and orange, daisy-like inflorescences.

<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.

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

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

References

  1. 1 2 "Olearia ramulosa". Australian Plant Census. Retrieved 15 July 2022.
  2. 1 2 3 Lander, Nicholas S. "Olearia ramulosa". Royal BotanicGarden Sydney. Retrieved 15 July 2022.
  3. 1 2 Walsh, Neville G.; Lander, Nicholas S. "Olearia ramulosa". Royal Botanic Gardens Victoria. Retrieved 15 July 2022.
  4. 1 2 Elliot, Rodger W.; Jones, David L.; Blake, Trevor (1997). Encyclopaedia of Australian Plants Suitable for Cultivation. Vol. 7: N–Po. Port Melbourne, Victoria: Lothian Press. p. 93. ISBN   0-85091-634-8.
  5. 1 2 "Olearia ramulosa". State Herbarium of South Australia. Retrieved 15 July 2022.
  6. ↑ "Aster ramulosus". APNI. Retrieved 15 July 2022.
  7. ↑ Labillardiere, J.J.H. de (1806). Novae Hollandiae Plantarum Specimen (in Latin). Vol. 2. Paris, France: Ex typographia Dominæ Huzard. p. 51.
  8. ↑ "Olearia ramulosa". APNI. Retrieved 15 July 2022.
  9. ↑ Bentham, George; von Mueller, Ferdinand (1867). Flora Australiensis. London: Lovell Reeve & Co. pp. 476–477. Retrieved 15 July 2022.
  10. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 291. ISBN   9780958034180.
  11. ↑ "Diplostephium ramulosum". APNI. Retrieved 15 July 2022.
  12. ↑ Nees von Esenbeck, C.G.D. (1832). Genera et Species Asterearum (in Latin). p. 193.
  13. ↑ "Eurybia ramulosa". APNI. Retrieved 15 July 2022.
  14. ↑ De Candolle, Augustin Pyramus (1836). Prodromus Systematis Naturalis Regni Vegetabilis (in Latin). Vol. 5. Paris, France: Sumptibus Sociorum Treuttel et Würtz. p. 270.
  15. ↑ Cunningham, Geoff M.; Mulham, William E.; Milthorpe, Peter L.; Leigh, John H. (1981). Plants of Western New South Wales. Sydney, New South Wales: NSW Government Printing Service. p. 644. ISBN   0-7240-2003-9.
  16. ↑ Jordan, Greg. "Oleaaria ramulosa". University of Tasmania. Retrieved 15 July 2022.
  17. ↑ Common, I.F.B. (1990). Moths of Australia. CSIRO publishing. ISBN   9780643102712.
  18. ↑ Kingston, Andrew B.; Quillan, Peter B. (2000). "Are pollination syndromes useful predictors of floral visitors in Tasmania?" (PDF). Austral Ecology. 25 (6): 600–09. doi:10.1111/j.1442-9993.2000.tb00065.x.
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