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Melaleuca bracteosa is a low, spreading shrub in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It has tiny, fleshy, non-prickly leaves and cream flowerheads.

Melaleuca bracteosa
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Melaleuca
Species:
M. bracteosa
Binomial name
Melaleuca bracteosa

Description


Melaleuca bracteosa is sometimes an erect shrub to a height of 1.5 metres (5 ft) but is more usually a low, dense spreading shrub to about 0.5 m (2 ft). Its leaves are narrow oval in shape, 2.7–9 mm (0.1–0.4 in) long and 0.9–1.5 mm (0.04–0.06 in), glabrous, bright green and fleshy with a blunt tip.

The flowers are usually bright cream coloured but sometimes white or mauve-pink. They are in heads, sometimes on the ends of branches and sometimes on the sides of the stem, each head about 16 mm (0.6 in) in diameter and containing 5 to 20 individual flowers. The stamens are arranged in five bundles around the flower, each bundle containing 3 to 8 stamens. The flowering season lasts from August to November and is followed by fruit which are woody capsules 2.4–3.2 mm (0.09–0.1 in) long.[2][3]

Habit at Cape Riche
Habit at Cape Riche
Fruit
Fruit

Taxonomy and naming


This species was first formally described in 1847 by the Russian botanist Nikolai Turczaninow in Bulletin de la classe physico-mathematique de l'Academie Imperiale des sciences de Saint-Petersburg.[4][5] The specific epithet (bracteosa) is from the Latin bractea, meaning bract, referring to the persistent bracts of the flowers.[3]


Distribution and habitat


This melaleuca occurs from the Pingrup district south to Albany and east to Ravensthorpe in the Avon Wheatbelt, Esperance Plains, Jarrah Forest and Mallee biogeographic regions.[6] It grows in sand, loam or clay on winter-wet flats or plains[7] often under low trees or tall shrubs.[2]


Conservation status


Melaleuca bracteosa is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[6]


Uses



Essential oils


This species produces sesquiterpene oils at a rate of 0.3% (weight for weight) from fresh leaves.[3]


References


  1. "Melaleuca bracteosa". Australian Plant Census. Retrieved 3 October 2019.
  2. Holliday, Ivan (2004). Melaleucas : a field and garden guide (2nd ed.). Frenchs Forest, N.S.W.: Reed New Holland Publishers. pp. 32–33. ISBN 1876334983.
  3. Brophy, Joseph J.; Craven, Lyndley A.; Doran, John C. (2013). Melaleucas : their botany, essential oils and uses. Canberra: Australian Centre for International Agricultural Research. p. 96. ISBN 9781922137517.
  4. "Melaleuca bracteosa". APNI. Retrieved 11 March 2015.
  5. Turczaninow, Nikolai (1852). Bulletin de la classe physico-mathematique de l'Academie Imperiale des sciences de Saint-Petersburg, Volumes 10-11. St. Petersburg. p. 340. Retrieved 15 March 2015.
  6. "Melaleuca bracteosa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  7. Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue. Perth: Wildflower Society of Western Australia. p. 392. ISBN 0646402439.



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