Olearia incana

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Olearia incana
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Olearia
Species:
O. incana
Binomial name
Olearia incana
Synonyms [1]

Olearia pimeleoides subsp. incanaD.A.Cooke

Olearia incana is a species of flowering plant in the family Asteraceae and is endemic to southern Australia. It is a shrub with narrowly elliptic or wedge-shaped leaves and white and pale yellow, daisy-like inflorescences.

Contents

Description

Olearia incana is a shrub that typically grows to a height of 0.5–2 m (1 ft 8 in – 6 ft 7 in). Its leaves are arranged alternately along the branchlets, narrowly elliptic to wedge-shaped, 2–18 mm (0.079–0.709 in) long, 1–4 mm (0.039–0.157 in) wide and sessile. The edges of the leaves are sometimes coarsely toothed and both side are covered with woolly, greyish hairs. The heads or daisy-like "flowers" are arranged singly or in twos or threes on the ends of branchlets on a peduncle up to 90 mm (3.5 in) long, each head with 11 to 21 white ray florets surrounding 20 to 27 pale yellow disc florets. Flowering occurs from June to November and the fruit is a silky-hairy achene, the pappus with 37 to 56 bristles. [2] [3] [4] [5]

Taxonomy

This olearia was first formally described in 1985 by David Alan Cooke who gave it the name Olearia pimeleoides subsp. incana in the Journal of the Adelaide Botanic Gardens , based on material collected by Peter Bruce Copley near Maralinga in 1969. [6] [7] In 2008, Nicholas Sèan Lander raised the subspecies to species status as Olearia incana in the journal Nuytsia . [2] [8] The specific epithet (incana) means "greyish", referring to the foliage. [2]

Distribution and habitat

Olearia incana grows in open woodland and forest, on flats and sandplains in the south-east of Western Australia, the southern half of South Australia, eastern Victoria and western New South Wales. [4]

Conservation status

This daisy bush is listed as "not threatened" by the Department of Biodiversity, Conservation and Attractions. [4]

Related Research Articles

<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 megalophylla</i> Species of shrub

Olearia megalophylla, commonly known as large-leaf 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 to elliptic leaves and white and yellow, 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 canescens</i> Species of shrub

Olearia canescens is a species of flowering plant in the family Asteraceae and is endemic to eastern Australia. It is a shrub with scattered elliptic or egg-shaped leaves, and white and yellow, 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 arckaringensis, commonly known as Arckaringensis daisy, is a species of flowering plant in the family Asteraceae and is endemic to a restricted area of northern South Australia. It is a small, compact, rounded shrub with woolly-hairy foliage, coarsely-toothed, elliptic leaves and lavender or white and yellow, daisy-like inflorescences.

Olearia burgessii is a species of flowering plant in the family Asteraceae and is endemic to south-eastern New South Wales. It is a shrub with scattered elliptic to egg-shaped leaves with the narrower end towards the base, 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 eremaea is a species of flowering plant in the family Asteraceae and is endemic to inland areas of Western Australia. It is a shrub with scattered, more or less elliptic leaves, and white and yellow, daisy-like inflorescences.

Olearia fluvialis is a species of flowering plant in the family Asteraceae and is endemic to inland areas of northern Western Australia. It is a shrub with scattered, narrowly egg-shaped leaves, and white or mauve and yellow, daisy-like inflorescences.

Olearia gordonii is a species of flowering plant in the family Asteraceae and is endemic to inland southern Queensland. It is a small, erect, spreading shrub with linear leaves and blue, daisy-like inflorescences.

Olearia incondita is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is a straggly shrub with narrowly elliptic leaves and white or pink and yellow, daisy-like inflorescences.

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

Olearia laciniifolia 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 an erect shrub with scattered oblong leaves with small lobes on the edges, and lilac, white and yellow, daisy-like inflorescences.

Olearia lasiophylla is a species of flowering plant in the family Asteraceae and is endemic to south-eastern New South Wales. It is a shrub with hairy, elliptic leaves and white or mauve, and yellow 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.

Olearia macdonnellensis is a species of flowering plant in the family Asteraceae and is endemic to a restricted part of the Northern Territory of Australia. It is an erect, bushy shrub shrub with broadly elliptic to broadly egg-shaped leaves and yellow, or white and yellow, daisy-like inflorescences.

Olearia mucronata is a species of flowering plant in the family Asteraceae and is endemic to inland areas of Western Australia. It is a densely-branched, unpleasantly aromatic shrub with crowded linear leaves, and white and yellow, daisy-like inflorescences.

Olearia occidentissima is a species of flowering plant in the family Asteraceae and is endemic to the extreme west of Western Australia. It is an erect or prostrate, wind-pruned shrub with narrowly elliptic leaves that are woolly-hairy on the lower surface, and white, 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 trifurcata is a species of flowering plant in the family Asteraceae and is endemic to the south of Western Australia. It is a dense, upright, tussock-like subshrub with narrowly triangular, grass-like leaves, and white and pale yellow, daisy-like inflorescences.

References

  1. 1 2 "Olearia incana". Australian Plant Census. Retrieved 2 May 2022.
  2. 1 2 3 Lander, Nicholas S. (2008). "New species of Olearia (Asteraceae: Astereae) from Western Australia" (PDF). Nuytsia. 18: 97–100. Retrieved 2 May 2022.
  3. ↑ Lander, Nicholas S. "Olearia incana". Royal Botanic Garden Sydney. Retrieved 2 May 2022.
  4. 1 2 3 "Olearia incana". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ "Olearia pimeleoides ssp. incana". State Herbrium of South Australia. Retrieved 2 May 2022.
  6. ↑ "Olearia pimeleoides subsp. incana". APNI. Retrieved 2 May 2022.
  7. ↑ Cooke, David Allan (1985). "Studies in the Tribes Astereae and Inuleae (Compositae)". Journal of the Adelaide Botanic Gardens. 7 (3): 281. Retrieved 2 May 2022.
  8. ↑ "Olearia incana". APNI. Retrieved 2 May 2022.
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