Olearia ramulosa
Olearia ramulosa | |
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In Box Hill South, Victoria | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Olearia |
Species: | O. ramulosa
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Binomial name | |
Olearia ramulosa | |
Synonyms[1] | |
List
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Olearia ramulosa, commonly known as twiggy daisy-bush,
Description
Olearia ramulosa is a shrub that typically grows to a height of 1.6 m (5 ft 3 in). Its leaves are alternately arranged along the stems, narrowly elliptic, linear or narrowly egg-shaped with the narrower end towards tha base, 2–8 mm (0.079–0.315 in) long and 0.8–2.5 mm (0.031–0.098 in) wide with the edges rolled under. The upper surface of the leaf is covered with minute pimples and the lower surface is covered with grey, woolly hairs. The heads or daisy-like
Taxonomy
Jacques Labillardière described the twiggy daisy bush as Aster ramulosus in 1806, in volume 2 of his Novae Hollandiae Plantarum Specimen, from material collected in Tasmania.[6][7]
In 1867, George Bentham changed the name to Olearia ramulosus in Flora Australiensis.[8][9] The specific epithet (ramulosus) means "bearing branches".[10]
Other botanists gave the species other names, but the name accepted by the Australian Plant Census is Olearia ramulosa. Those other botanists included German botanist Christian Gottfried Daniel Nees von Esenbeck who changed Labillardière's Aster ramulosus to Diplostephium ramulosum in 1832,[11][12] and Swiss botanist Augustin Pyramus de Candolle who changed Labillardière's name to Eurybia ramulosa in 1836.[13][14]
Alternative common names are oily bush and water cypress.[15]
Distribution and habitat
Olearia ramulosa grows in forest, woodland and scrub, and is widespread and common from south-eastern Queensland, through New South Wales, the Australian Capital Territory and eastern Victoria to south-eastern South Australia and Tasmania.[2][3][5][16]
Ecology
The plant is eaten by caterpillars of the moth species Amelora milvaria.[17] Bees, beetles, and less commonly flies and wasps have been recorded visiting flowers in a Tasmanian field study.[18]
Use in horticulture
Olearia ramulosa can be propagated by seeds or cuttings of new growth that has hardened. It can be grown in dry or temperate climates and is frost-hardy in sunny or part-shaded spots. Pruning can invigorate it and it can be grown as a low hedge.[4]
References
- ^ a b "Olearia ramulosa". Australian Plant Census. Retrieved 15 July 2022.
- ^ a b c Lander, Nicholas S. "Olearia ramulosa". Royal BotanicGarden Sydney. Retrieved 15 July 2022.
- ^ a b Walsh, Neville G.; Lander, Nicholas S. "Olearia ramulosa". Royal Botanic Gardens Victoria. Retrieved 15 July 2022.
- ^ ISBN 0-85091-634-8.
- ^ a b "Olearia ramulosa". State Herbarium of South Australia. Retrieved 15 July 2022.
- ^ "Aster ramulosus". APNI. Retrieved 15 July 2022.
- ^ Labillardiere, J.J.H. de (1806). Novae Hollandiae Plantarum Specimen (in Latin). Vol. 2. Paris, France: Ex typographia Dominæ Huzard. p. 51.
- ^ "Olearia ramulosa". APNI. Retrieved 15 July 2022.
- ^ Bentham, George; von Mueller, Ferdinand (1867). Flora Australiensis. London: Lovell Reeve & Co. pp. 476–477. Retrieved 15 July 2022.
- ISBN 9780958034180.
- ^ "Diplostephium ramulosum". APNI. Retrieved 15 July 2022.
- ^ Nees von Esenbeck, C.G.D. (1832). Genera et Species Asterearum (in Latin). p. 193.
- ^ "Eurybia ramulosa". APNI. Retrieved 15 July 2022.
- ^ De Candolle, Augustin Pyramus (1836). Prodromus Systematis Naturalis Regni Vegetabilis (in Latin). Vol. 5. Paris, France: Sumptibus Sociorum Treuttel et Würtz. p. 270.
- ISBN 0-7240-2003-9.
- ^ Jordan, Greg. "Oleaaria ramulosa". University of Tasmania. Retrieved 15 July 2022.
- ISBN 9780643102712.
- .