Melaleuca vinnula

Melaleuca vinnula is a plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia.[1] It is a shrub with narrow leaves, heads of white to yellow flowers followed by tight clusters of fruit and it is found in the wheatbelt. It is a newly-described species from a review of the group of melaleucas known as broombrush.

Melaleuca vinnula
M. vinnula leaves, flowers and fruit
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Melaleuca
Species:
M. vinnula
Binomial name
Melaleuca vinnula

Description

Melaleuca vinnula is a multi-stemmed shrub growing to a height of 2.5 m (8 ft) with grey, peeling papery bark. Its leaves are linear to oval, 9–50 mm (0.4–2 in) long and 1.1–2.8 mm (0.04–0.1 in) wide and with a short stalk. Head of flowers appear on the ends of the branches in November and December, each head composed of 6 to 16 groups of flowers, each group composed of three flowers. The stamens are white to yellow, in five bundles around the flower with five to seven stamens per bundle. The fruit are capsules which develop in groups around the stem and become pressed together so that they seem like one.[1]

M. vinnula growing on Mount Matilda near Wongan Hills

Taxonomy and naming

This species was first formally described in 2004 by Lyndley Craven and Brendan Lepschi in Australian Systematic Botany[2] when they (with others) examined the group originally known as Melaleuca uncinata.[3] The specific epithet (vinnula) is from the Latin vinnulus meaning "delightful" or "sweet"[4] "in reference to the appearance of this species."[1]

Distribution and habitat

Melaleuca vinnula occurs between Coorow and Southern Cross in the Avon Wheatbelt and Coolgardie biogeographic regions growing in sandy or clayey soils or loam on granite. It is common on rock outcrops, gently undulating slopes and road verges.[5]

Conservation

Melaleuca vinnula is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[5]

References
  1. 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. 383. ISBN 9781922137517.
  2. "Melaleuca vinnula". APNI. Retrieved 13 March 2015.
  3. Craven, Lyn A.; Lepschi, Brendan J.; Broadhurst, Linda; Byrne, Margaret (2004). "Taxonomic revision of the broombush complex in Western Australia (Myrtaceae, Melaleuca uncinata s.l.)". Australian Systematic Botany. 17 (3): 269. doi:10.1071/SB04001. Retrieved 13 March 2015.
  4. "vinnulus". Tufts university: department of the classics. Retrieved 13 March 2015.
  5. "Melaleuca vinnula". FloraBase. Western Australian Government Department of Parks and Wildlife.
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