Mountain daisy | |
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Olearia ballii | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Olearia |
Species: | O. ballii |
Binomial name | |
Olearia ballii | |
Synonyms [1] | |
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Olearia ballii, commonly known as mountain daisy, [2] is a species of flowering plant in the family Asteraceae and is endemic to Lord Howe Island. It is a dense shrub with crowded linear leaves and small, purplish and white, daisy-like inflorescences.
Olearia ballii is a dense shrub that typically grows to a height of up to 1.5 m (4 ft 11 in). It has crowded, more or less sessile, linear leaves 5–12 mm (0.20–0.47 in) long and 0.5–1.5 mm (0.020–0.059 in) wide with the edges rolled under and white, woolly hairs on the lower surface. The heads or daisy-like "flowers" are arranged singly in on the ends of the branchlets and are 15–20 mm (0.59–0.79 in) in diameter and sessile, with softly-hairy bracts forming an involucre at the base. Each head has twenty to thirty ray florets, the white petal-like ligules up to 8 mm (0.31 in) long with purple tips, surrounding about forty purplish disc florets. Flowering mostly occurs between October and March and the fruit is an achene about 3 mm (0.12 in) long, the pappus bristles about 2 mm (0.079 in) long. [2] [3]
Mountain daisy was first formally described in 1874 by Ferdinand von Mueller who gave it the name Aster ballii in Fragmenta Phytographiae Australiae . [4] [5] In 1896, William Hemsley changed the name to Olearia ballii in the Annals of Botany . [6] [7] The specific epithet (ballii) honours Lieutenant Henry Lidgbird Ball who, while commanding HMS Supply in 1788, discovered and named Lord Howe Island, where the plant was subsequently collected. [3]
Olearia ballii is endemic to Australia’s Lord Howe Island where it grows on the southern mountains and is common at altitudes above 400 m (1,300 ft). [2] [3]
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.
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.
Olearia stuartii is a species of flowering plant in the family Asteraceae and is endemic arid parts of inland Australia. It is compact, spreading shrub or undershrub with lance-shaped leaves and blue to mauve and yellow, daisy-like inflorescences.
Olearia asterotricha, commonly known as rough daisy-bush, 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.
Olearia homolepis is a species of flowering plant in the family Asteraceae and is endemic to Western Australia. It is a shrub with linear leaves and white or blue and yellow, daisy-like inflorescences.
Olearia mooneyi, commonly known as pumpkin bush, is a species of flowering plant in the family Asteraceae and is endemic to Lord Howe Island. It is a shrub or small tree with hairy, elliptic to egg-shaped leaves with the narrower end towards the base, and white and pale yellow, daisy-like inflorescences.
Melicope contermina is a species of shrub or small tree in the family Rutaceae and is endemic to Lord Howe Island. It has trifoliate leaves and white flowers borne in leaf axils in panicles of nine to fifteen flowers.
Pimelea congesta is a species of flowering plant in the family Thymelaeaceae and is endemic to Lord Howe Island in Australia. It is a shrub with rough bark, decussate, elliptic leaves and heads of white flowers.
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.
Olearia adenolasia, commonly known as woolly-glandular daisy-bush, is a species of flowering plant in the family Asteraceae. It is a small upright shrub with sticky leaves and blue-purple or white daisy flowers.
Olearia magniflora, commonly known as splendid daisy-bush, is a small shrub with clusters of deep mauve to purple flowers.
Olearia oppositifolia is a species of flowering plant in the family Asteraceae and is endemic to eastern Australia. It is a shrub with egg-shaped to elliptic leaves arranged in opposite pairs, and white and yellow daisy flowers.
Olearia exiguifolia commonly known as small-leaved daisy bush, is a species of flowering plant in the family Asteraceae and is endemic to south-western Australia. It is an erect or straggly shrub with broadly egg-shaped leaves with the narrower end towards the base, and white and yellow, daisy-like inflorescences.
Olearia cassiniae is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is an erect or spreading shrub that typically grows to a height of 0.7–1.8 m and produces white daisy-like inflorescences, mostly between February and April. The species was first formally described in 1865 by Ferdinand von Mueller who gave it the name Aster cassiniae in Fragmenta Phytographiae Australiae from specimens collected by George Maxwell. In 1867, George Bentham changed the name to Olearia cassiniae in Flora Australiensis. The specific epithet (cassiniae) is a reference to the genus Cassinia.
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 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.
Olearia gravis is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a shrub with elliptic or egg-shaped leaves and white and yellow, daisy-like inflorescences.
Olearia nernstii is a species of flowering plant in the family Asteraceae and is endemic to eastern Australia. It is a shrub with scattered egg-shaped to elliptic leaves with toothed or prickly edges, and white and yellow, daisy-like inflorescences.
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.
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.