| Wrinkled daisy-bush | |
|---|---|
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Olearia |
| Species: | O. rugosa |
| Binomial name | |
| Olearia rugosa | |
Olearia rugosa, commonly known as wrinkled daisy-bush, [2] 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.
Olearia rugosa is sometimes a spindly shrub to 2.5 m (8 ft 2 in) high with branchlets densely covered in star-shaped, short matted hairs. The leaves are arranged alternately, almost sessile or with a petiole, broadly elliptic, oblong or egg-shaped, 7–80 mm (0.28–3.15 in) long, usually 7–25 mm (0.28–0.98 in) wide, green on the upper surface, veined, wrinkled, warty, some with finer occasional star-shaped hairs and densely covered in grey-brown, soft hairs on the under surface. The leaf margins are broadly toothed to scalloped, flat or curved under, rarely smooth. The flower head is 20–25 mm (0.79–0.98 in) in diameter, borne in upper leaf axils or at the end of branches singly or in corymbs on a peduncle 0.5–5 cm (0.20–1.97 in) long. The white flowers are in groups of 8-13, ligules 7–10 mm (0.28–0.39 in) long, centres yellow or purplish. The bracts toothed, margins sometimes purple coloured, densely covered with short, matted, star-shaped hairs or only near the apex. The dry fruit is cylindrical, one-seeded, ribbed, 2–2.5 mm (0.079–0.098 in) long, smooth or with a moderate covering of silky hairs. [2]
This species was first formally described in 1861 by William Archer who gave it the name Eurybia rugosa in the Journal of the Proceedings of the Linnean Society, Botany , from an unpublished description by Ferdinand von Mueller. [3] [4] In 1917 John Hutchinson changed the name to Olearia rugosa in The Gardeners' Chronicle. [5] [6] The specific epithet (rugosa) means "wrinkled". [7]
In 2013, five subspecies of O. rugosa were described in Australian Systematic Botany and the names are accepted by the Australian Plant Census:
† The type specimens of O. allenderae were collected by Marie Allender. [10]
Subspecies allenderae grows in swampy areas or on gully slopes in forest and is restricted to Wilsons Promontory National Park [11] and subsp. angustifolia usually grows in streams or swamps in near-coastal areas of East Gippsland in Victoria. [13] Subspecies distaliloba grows in mountain forest, often in gullies and depressions, from far south-eastern New South Wales and east of the Snowy River in Victoria. [15] [19] Subspecies intermedia is restricted to some Bass Strait Islands and north-eastern Tasmania [2] and subsp. rugosa is found in moist forests, mostly on the Great Dividing Range between Mount Macedon and Drouin in central southern Victoria. [18]
Subspecies allenderae is listed as "endangered" under the Victorian Government Flora and Fauna Guarantee Act 1988 . [11]
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.
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 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.
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.
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.
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.
Grevillea oxyantha is a species of flowering plant in the family Proteaceae and is endemic to south-eastern continental Australia. It is an erect to spreading shrub with somewhat silky-hairy branchlets, broadly elliptic to broadly egg-shaped or almost round leaves, and hairy, crimson and pink flowers with a red style.
Grevillea miqueliana is a species of flowering plant in the family Proteaceae and is endemic to Victoria in Australia. It is an erect to spreading shrub with elliptic to egg-shaped leaves and clusters of red and orange or yellow flowers.
Pomaderris oraria, commonly known as Bassian dogwood, is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern Australia. It is a compact shrub with hairy branchlets, hairy, elliptic leaves and panicles of hairy, greenish to cream-coloured or crimson-tinged flowers.
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.
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 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.
Olearia pannosa, commonly known as silver-leaved daisy or velvet daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern continental Australia. It is a spreading undershrub or shrub with egg-shaped or heart-shaped leaves, and white and yellow daisy flowers.
Philotheca angustifolia, commonly known as narrow-leaf wax flower, is a species of flowering plant in the family Rutaceae and is endemic to south-eastern Australia. It is a shrub with small leaves and white flowers with five egg-shaped petals in spring.
Pomaderris helianthemifolia is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern continental Australia. It is a bushy shrub with hairy young stems, narrowly elliptic to lance-shaped leaves with the narrower end towards the base, and small panicles of hairy yellowish flowers.
Pomaderris ligustrina, commonly known as privet pomaderris, is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern continental Australia. It is a shrub with hairy stems, lance-shaped to narrowly elliptic leaves, and loose clusters of cream-coloured or yellow flowers.
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.
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.
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.