Melaleuca tortifolia

Melaleuca tortifolia is a plant in the myrtle family, Myrtaceae and is endemic to a small area on the Northern Tablelands of New South Wales in Australia. It has egg-shaped, twisted leaves and heads, or short spikes of white or creamy-white flowers in December. It is classified as a threatened species.

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

Description

Melaleuca tortifolia is a shrub growing to about 3 m (10 ft) tall. Its leaves are arranged in more or less opposite pairs and are 8–15 mm (0.3–0.6 in) long, 2–4.5 mm (0.08–0.2 in) wide, egg-shaped with the end tapering to a point. The leaves are flat but usually twisted, with 3 to 5 longitudinal veins.[1][2]

The flowers are white, pale cream or pink in colour and are arranged in heads or short spikes on the ends of branches that continue to grow after flowering. The heads contain 2 to 10 groups of flowers in threes and are up to 23 mm (0.9 in) in diameter but sometimes the flowers may be in small groups of individual flowers. The petals are 2–3 mm (0.08–0.1 in) long and fall off as the flower ages. The stamens are in five bundles around the flowers, each bundle containing 10 to 16 stamens. Flowering usually occurs in December and is followed by the fruit which are woody, almost spherical capsules 4–5 mm (0.16–0.20 in) in diameter.[1][2][3]

Melaleuca tortifolia growing on Mount Barren

Taxonomy and naming

Melaleuca tortifolia was first formally described in 1984 by Norman Byrnes in Austrobaileya.[4] The specific epithet (tortifolia) is from the Latin tortus meaning "twist" or "turn"[5]:821 and folium meaning "a leaf"[5]:466 referring to the often twisted leaves.[1]

Distribution and habitat

Melaleuca tortifolia is only known from Barren Mountain near Ebor where it grows in heath in wet places.[2]

Conservation

Melaleuca tortifolia is a threatened species listed as 2Rc-t in the ROTAP[2] classification, meaning that it is rare but without any identifiable threat, and all the known individual plants are in a conservation reserve.[6]

  • Flower detail
  • Leaf arrangement

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. 364. ISBN 9781922137517.
  2. "Melaleuca tortifolia". Royal botanic garden Sydney: plantnet. Retrieved 27 April 2015.
  3. Holliday, Ivan (2004). Melaleucas : a field and garden guide (2nd ed.). Frenchs Forest, N.S.W.: Reed New Holland Publishers. p. 52. ISBN 1876334983.
  4. "Melaleuca tortifolia". APNI. Retrieved 27 April 2015.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  6. Briggs, John D.; Leigh, John H. (1995). Rare or threatened Australian plants (1995 (revised) ed.). Collingwood, Victoria: CSIRO. ISBN 0643057986. Retrieved 27 April 2015.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.