Olearia rudis

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Olearia rudis
Olearia rudis.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Olearia
Species:
O. rudis
Binomial name
Olearia rudis
(Benth.) F.Muell. ex Benth. [1]
Synonyms [1]
List
    • Aster exul Lindl.
    • Eurybia rudisBenth.
    • Eurybia rudis var. argutaBenth.
    • Eurybia rudisBenth. var. rudis
    • Eurybia scabraBenth.
    • Olearia rudisF.Muell. nom. inval., pro syn.
    • Olearia rudis var. glabriusculaBenth.
    • Olearia rudis(Benth.) F.Muell. ex Benth. var. rudis
    • Olearia rudis var. scabra(Benth.) Benth.
    • Shawia rudis(Benth.) Sch.Bip.
    • Shawia scabra(Benth.) Sch.Bip.
Habit in Wyperfield National Park Olearia rudis habit.jpg
Habit in Wyperfield National Park

Olearia rudis, commonly known as azure daisy-bush, [2] 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.

Contents

Description

Olearia rudis is a stiff, usually short-lived shrub or subshrub that typically grows to a height of up to about 1.3 m (4 ft 3 in), its branchlets usually bristly-hairy. It has crowded elliptic or egg-shaped leaves with the narrower end towards the base, 15–45 mm (0.59–1.77 in) long and 7–18 mm (0.28–0.71 in) wide. Both surface of the leaves are bristly-hairy, the edges are often serrated, and the base is slightly stem-clasping. The heads or daisy-like "flowers" are arranged singly or in corymbs on the ends of branches or in leaf axils on a peduncle 20–50 mm (0.79–1.97 in) and are 25–50 mm (0.98–1.97 in) in diameter. Each head has 40 to 75 pale blue, mauve or purple ray florets, the ligule 10–20 mm (0.39–0.79 in) long, surrounding 60 to 250 orange disc florets. Flowering occurs from July to October and the fruit is a glabrous achene, the pappus 5–7 mm (0.20–0.28 in) long. [2] [3] [4]

Taxonomy

This daisy was first formally described in 1837 by George Bentham who gave it the name Eurybia rudis in Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hügel from specimens collected near the Swan River. [5] In 1867, Bentham changed the name to Olearia rudis in Flora Australiensis . [6] The specific epithet (rudis) means "rough" or "wild". [7]

Distribution and habitat

Olearia rudis grows in mallee and woodland in western New South Wales, north-western Victoria and the south-east of South Australia. [2] [3] [4]

Related Research Articles

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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

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

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

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

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<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 paucidentata</i> Species of Asteraceae

Olearia paucidentata, the autumn scrub daisy, is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is a shrub with variably-shaped leaves, and white, mauve or blue and mauve or yellow, daisy-like inflorescences.

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.

<i>Olearia ferresii</i> Species of Asteraceae

Olearia ferresii is a species of flowering plant in the family Asteraceae and is endemic to central Australia. It is an erect, aromatic shrub with elliptic to lance-shaped leaves and white and yellow, daisy-like inflorescences.

Olearia imbricata, commonly known as imbricate daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is a shrub with small, overlapping linear leaves and bluish-purple or white, daisy-like inflorescences.

Olearia lehmanniana is a species of flowering plant in the family Asteraceae and is endemic to inland areas of the south-west of Western Australia. It is a shrub with scattered elliptic or linear leaves that are densely hairy on the lower surface, and pale mauve, daisy-like inflorescences.

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

Olearia muricata, commonly known as rough-leaved daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is an erect shrub with flat, linear to triangular leaves, and white or pale mauve and yellow, daisy-like inflorescences.

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.

Olearia strigosa, commonly known as bristly daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is an erect shrub with linear leaves and blue or purple, daisy-like inflorescences.

<i>Olearia subspicata</i> Species of Asteraceae

Olearia subspicata, commonly known as spiked daisy bush or shrubby daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to continental Australia. It is an erect shrub with more or less linear leaves and white and yellow, daisy-like inflorescences.

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

Olearia tubuliflora, commonly known as rayless 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 shrub with linear or narrowly elliptic leaves and yellow, daisy-like inflorescences but with the ray florets lacking a ligule.

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

Olearia xerophila is a species of flowering plant in the family Asteraceae and is endemic northern Australia. It is an erect subshrub with elliptic to broadly elliptic leaves and violet, blue or mauve and yellow, daisy-like inflorescences.

References

  1. 1 2 "Olearia rudis". Australian Plant Census. Retrieved 13 July 2022.
  2. 1 2 3 Walsh, Neville G.; Lander, Nicholas S. "Olearia rudis". Royal Botanic Gardens Victoria. Retrieved 13 July 2022.
  3. 1 2 Lander, Nicholas S. "Olearia rudis". Royal Botanic Garden Sydney. Retrieved 11 July 2022.
  4. 1 2 "Olearia rudis". State Herbarium of South Australia. Retrieved 13 July 2022.
  5. ↑ "Eurybia rudis". APNI. Retrieved 13 July 2022.
  6. ↑ "Olearia rudis". APNI. Retrieved 13 July 2022.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 298. ISBN   9780958034180.
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