Melaleuca densa

Melaleuca densa is a shrub in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a bushy shrub with profuse cream, yellow or greenish flowers and overlapping leaves on the youngest shoots.

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

Description

Melaleuca densa grows to a height of about 2–3 m (7–10 ft) and has fibrous, grey or almost white bark. Its leaves are arranged alternately or often in threes around the stem, each leaf 2–9 mm (0.08–0.4 in) long and 1.0–6.7 mm (0.04–0.3 in) wide, oval shaped to almost circular but tapering to a soft point.

The yellow or cream coloured flowers are in heads or spikes at the ends of branches that continue to grow after flowering. Each head has between 15 and 37 individual flowers, making a group up to 25 mm (1 in) long and 20 mm (0.8 in) in diameter. At the base of each flower there are brown, papery, overlapping bracts which fall off as the flowers develop. The stamens are arranged in 5 bundles around the flower, each bundle containing 3 to 6 stamens. Flowering occurs from August to September but sometimes continues to December. The fruit are woody capsules 1.8–2.6 mm (0.07–0.1 in) long with the sepals remaining as rounded teeth.[1][2]

Taxonomy and naming

This species was first formally described in 1812 by Robert Brown in Hortus Kewensis.[3][4] The reason Brown chose the specific epithet (densa) is not known but it is from the Latin densus, meaning "dense", and may refer to the density of the leaves or of the flowers in the inflorescence.[2]

Distribution and habitat

Melaleuca densa occurs from the Stirling Range to Augusta[1] in the Avon Wheatbelt, Esperance Plains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic regions.[5] It grows sandy or clayey soils in seasonally wet flats, in swamps and on riverbanks.[6]

Conservation status

Melaleuca densa is listed as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[5]

  • Dense regeneration of M. densa after fire
  • Large shrub form of M. densa
  • Melaleuca densa fruit
  • Melaleuca densa on Bluff Knoll
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References
  1. Holliday, Ivan (2004). Melaleucas : a field and garden guide (2nd ed.). Frenchs Forest, N.S.W.: Reed New Holland Publishers. pp. 86–87. ISBN 1876334983.
  2. 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. 144. ISBN 9781922137517.
  3. "Melaleuca densa". APNI. Retrieved 26 March 2015.
  4. Brown, Robert; Aiton, William Townsend (1812). Hortus kewensis. London. p. 416. Retrieved 26 March 2015.
  5. "Melaleuca densa". FloraBase. Western Australian Government Department of Parks and Wildlife.
  6. Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue. Perth: Wildflower Society of Western Australia. p. 393. ISBN 0646402439.
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