Olearia asterotricha

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Rough daisy-bush
Olearia asterotricha.JPG
Olearia asterotricha in Maranoa 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. asterotricha
Binomial name
Olearia asterotricha
Synonyms [1]
  • Aster asterotrichus(F.Muell.) F.Muell.
  • Eurybia asterotrichaF.Muell.
  • Olearia asterotrichaF.Muell.
White form Olearia asterotricha white form.jpg
White form

Olearia asterotricha, commonly known as rough daisy-bush, [2] is a species of flowering plant in the family Asteraceae. A tall shrub with white, mauve or blue daisy like flowers growing from the Blue Mountains in New South Wales to western Victoria, Australia.

Contents

Description

Olearia asterotricha is small sprawling shrub to 1–2 m (3.3–6.6 ft) high and 1.5–2 m (4.9–6.6 ft) wide with an open habit. The branchlets are covered with densely matted woolly hairs, star-shaped hairs or a combination of both. It has white, pale mauve or blue daisy like flowers with a yellow or purplish centre. The flowers are 2–4 cm (0.79–1.6 in) in diameter and solitary or 25-40 per cluster and appear at the end of stems. Each inflorescence is on a peduncle about 50 mm (2.0 in) long. The bracts have fine short matted hairs and arranged in rows of 1-3. The dark green leaves are arranged alternately, sometimes with a very small stalk or without a stalk. The leaves are broadly-linear or oblong shaped, 0.6–2.5 cm (0.24–0.98 in) long and 0.2–0.8 cm (0.079–0.31 in) wide with rough star shaped hairs on the upper side of the leaves and stems. The underside of leaves is densely woolly, leaf margins are entire or toothed and rolled under. The fruit is cylindrical shape about 3 mm (0.12 in) long with 6-8 ribs about 3 mm (0.12 in) long. Fruit are smooth to sparsely covered with matted hairs. It contains a dry single seed that does not open on maturity. [2] [3] [4] [5] [6] [7]

Taxonomy and naming

Rough daisy bush was first described in 1859 by Ferdinand von Mueller as Eurybia asterotricha and published in Fragmenta Phytographiae Australiae . [8] In 1865 Mueller changed the name to Aster asterotrichus [9] and in 1867 English botanist George Bentham changed the name to Olearia asterotricha in Flora Australiensis . [10] The specific epithet (asterotricha) is derived from the ancient Greek words aster meaning "a star" and thrix, trichos meaning "hair". [11]

In 2014, Andre Messina described four subspecies in Australian Systematic Botany and the names are accepted at the Australian Plant Census:

Distribution and habitat

Rough daisy bush grows from the Blue Mountains, New South Wales to western Victoria where it grows mostly in cool damp acidic soils, heath, or dry sclerophyll forest. The species may vary depending on geographic region. In the Sydney region it is a compact shrub with white flowers and grey-green foliage. The Victorian form has mauve-blue flowers, green leaves and a more open form. Considered rare in Victoria. [2]

Related Research Articles

<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 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 phlogopappa</i> Species of flowering plant

Olearia phlogopappa commonly known as the dusty daisy-bush or alpine daisy-bush is a species of flowering plant in the family Asteraceae that is commonly found in eastern New South Wales, Victoria and Tasmania. It is a small shrub with greyish-green foliage, daisy-like flowers in white, pink or mauve that can be seen from spring to late summer.

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

Olearia tomentosa, commonly known as the toothed daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern continental Australia. It is a spreading shrub with egg-shaped leaves, the edges toothed or lobed, and blue 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 floribunda</i> Species of plant

Olearia floribunda, commonly known as heath daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is an upright, spreading shrub with egg-shaped leaves and white and yellow or mauve, daisy-like inflorescences.

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

Olearia astroloba, commonly known as marble daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to a restricted area of Victoria in Australia. It is a greyish shrub with sessile, spatula-shaped leaves and mauve or violet and purple, daisy-like inflorescences.

<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 iodochroa</i> Species of shrub

Olearia iodochroa, commonly known as the violet daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern continental Australia. It is a shrub with branchlets densely covered with whitish hairs, narrowly egg-shaped leaves with the narrower end towards the base, and white or mauve, and cream-coloured, yellow or blue, daisy-like inflorescences.

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

Olearia magniflora, commonly known as splendid daisy-bush, is a small shrub with clusters of deep mauve to purple flowers.

<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 minor</i> Species of plant in the family Asteraceae

Olearia minor, is a small flowering shrub in the family Asteraceae. It has alternate leaves and white to pale mauve daisy-like flowers from winter to December. It grows in Western Australia, South Australia, New South Wales, and Victoria.

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

Olearia rugosa, commonly known as wrinkled daisy-bush, is a species of flowering plant in the family Asteraceae. It has alternate, wrinkled leaves and white daisy-like flowers and is endemic to south-eastern Australia.

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

Olearia tenuifolia, commonly known as the thin-leaf daisy-bush, is a small shrub with narrow leaves and clusters of blue, deep mauve to purple flowers.

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

Olearia frostii, commonly known as Bogong daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to Victoria in Australia. It is a low, often straggling shrub with egg-shaped leaves with the narrower end towards the base, and mauve to pink and yellow, daisy-like inflorescences.

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

Olearia passerinoides, commonly known as slender daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to southern continental Australia. It is a slender, sticky shrub with linear leaves, and white or pale mauve and mauve or pink daisy flowers.

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 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.

References

  1. 1 2 "Olearia asterotricha". Australian Plant Census. Retrieved 10 May 2020.
  2. 1 2 3 "Olearia asterotricha". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 18 November 2012.
  3. ↑ Corrick, M.G. & Fuhrer, B.A. (2001). Wildflowers of Victoria and adjoining areas. Australia: Bloomings Books. ISBN   1876473142.
  4. ↑ Paul G. Wilson. "New South Wales Flora Online: Olearia asterotricha". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  5. ↑ Schaumann, Maureen; Barker, Judy; Grieg, Joy (1987). Australian Daisies. Lothian. ISBN   0-85091-291-1.
  6. ↑ Tadesse, Mesfin (2015). "How to Study Asteraceae". Ethiopian Journal of Biology. Retrieved 17 April 2019.
  7. 1 2 Walsh, N.G; Lander, N.S. "Olearia asterotricha subsp. glaucophylla". VicFlora. Royal Botanic Gardens Victoria. Retrieved 19 April 2019.
  8. ↑ "Eurybia asterotricha". APNI. Retrieved 10 May 2020.
  9. ↑ "Aster asterotrichus". APNI. Retrieved 10 May 2020.
  10. ↑ "Olearia asterotricha". APNI. Retrieved 10 May 2020.
  11. ↑ Quattrocchi, Umberto (2000). CRC World Dictionary of Plant Names: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology, Volume 1. Boca Raton, Florida: CRC Press. p. 222. ISBN   0849326753.
  12. ↑ "Olearia asterotrichasubsp. asterotricha". Australian Plant Census. Retrieved 10 May 2020.
  13. 1 2 3 "Olearia asterotricha subsp. asterotricha". VicFlora Online. Royal Botanic Gardens Victoria. Retrieved 16 April 2019.
  14. ↑ "Olearia asterotrichasubsp. glaucophylla". Australian Plant Census. Retrieved 10 May 2020.
  15. ↑ "Olearia asterotrichasubsp. lobata". Australian Plant Census. Retrieved 10 May 2020.
  16. 1 2 Messina, Andre. "Olearia asterotricha subsp. lobata". VicFlora. Australian Botanic Gardens Victoria. Retrieved 20 April 2019.
  17. ↑ "Olearia asterotrichasubsp. rotundifolia". Australian Plant Census. Retrieved 10 May 2020.
  18. 1 2 Walsh, N.G; Lander, N.S. "Olearia asterotricha subsp. rotundifolia". VicFlora. Royal Botanic Gardens Victoria. Retrieved 19 April 2019.
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