Olearia decurrens

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Olearia decurrens
Olearia decurrens.jpg
In Ikara–Flinders Ranges National Park
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Olearia
Species:
O. decurrens
Binomial name
Olearia decurrens
Synonyms [1]

Olearia decurrens, commonly known as the clammy daisy bush, [2] 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.

Contents

Description

Olearia decurrens is a glabrous, sticky, twiggy shrub that typically grows to 1–2 m (3 ft 3 in – 6 ft 7 in) high and wide with many ribbed branches. The leaves are bright green and arranged alternately along the stems, egg-shaped or lance-shaped with the narrower end towards the base, to linear, 7–48 mm (0.28–1.89 in) long and 1–5 mm (0.039–0.197 in) wide, sometimes with toothed edges, and more or less sessile. The heads or daisy-like "flowers" are arranged in panicles on the ends of branchlets and 15–20 mm (0.59–0.79 in) in diameter with a bell-shaped involucre 3–4 mm (0.12–0.16 in) long. There are three to six ray florets, the white, petal-like ligules 3–4 mm (0.12–0.16 in) long surrounding five to seven yellow disc florets. Flowering mainly occurs from February to May and the fruit is a silky-hairy achene about 2 mm (0.079 in) long, the pappus with 35 to 65 bristles in two rows. [2] [3] [4] [5]

Taxonomy

This species was first formally described in 1836 Swiss botanist Augustin Pyramus de Candolle who gave it the name Eurybia decurrens in the fifth volume of his Prodromus Systematis Naturalis Regni Vegetabilis , from material collected by Allan Cunningham in the vicinity of the Lachlan River. [6] [7] In 1867, George Bentham changed the name to Olearia decurrens in Flora Australiensis . [8] The species name decurrens means "decurrent" and refers to the leaf base running down the stem. [9]

Distribution and habitat

Olearia decurrens grows in mallee scrub and forest in arid areas and is found across inland Australia, from Dubbo and Brewarrina in New South Wales, westwards across inland Victoria and South Australia and into Western Australia where it is found in the Gascoyne, Gibson Desert, Great Victoria Desert and Murchison biogeographic regions. [2] [3] [4] [5] [9] [10]

Use in horticulture

Seldom seen in cultivation, O. decurrens is drought- and frost-tolerant. It grows best in sunny or part-shaded locations with good drainage. Pruning prevents plants from becoming too spindly or leggy. [9]

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>Gompholobium glabratum</i> Species of legume

Gompholobium glabratum, commonly known as dainty wedge-pea, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern continental Australia. It is a low-lying or ascending shrub with pinnate leaves that have five to seven leaflets, and yellow and green or greyish flowers.

<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 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>Pultenaea euchila</i> Species of flowering plant

Pultenaea euchila, commonly known as orange pultenaea, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is an erect shrub with glabrous foliage, narrow egg-shaped leaves with the narrower end towards the base, and orange-coloured flowers arranged singly or in small groups near the ends of branchlets.

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

Bossiaea lenticularis is a species of flowering plant in the family Fabaceae and is endemic to eastern New South Wales. It is a slender, spreading shrub with mostly circular leaves, and yellow and red flowers.

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.

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

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>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 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 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 decurrens". Australian Plant Census. Retrieved 26 March 2022.
  2. 1 2 3 Lander, Nicholas S. "Olearia decurrens". Royal Botanic Garden Sydney: plantnet. Retrieved 26 October 2016.
  3. 1 2 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. 643. ISBN   0-7240-2003-9.
  4. 1 2 "Olearia decurrens". State Herbarium of South Australia. Retrieved 27 March 2022.
  5. 1 2 Walsh, Neville G.; Lander, Nicholas L. "Olearia decurrens". Royal Botanic Gardens Victoria. Retrieved 27 March 2022.
  6. ↑ "Eurybia decurrens". APNI. Retrieved 27 March 2022.
  7. ↑ De Candolle, Augustin Pyramus (1836). Prodromus Systematis Naturalis Regni Vegetabilis (in Latin). Vol. 5. Paris, France: Sumptibus Sociorum Treuttel et Würtz. p. 269.
  8. ↑ "Olearia decurrens". APNI. Retrieved 27 March 2022.
  9. 1 2 3 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. 74. ISBN   0-85091-634-8.
  10. ↑ "Olearia decurrens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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