Acacia dictyophleba

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Sandhill wattle
Acacia dictyophleba habit.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Phylum: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. dictyophleba
Binomial name
Acacia dictyophleba
Acacia dictyophlebaDistMap286.png
Occurrence data from AVH
Acacia dictyophleba foliage Acacia dictyophleba foliage.jpg
Acacia dictyophleba foliage

Acacia dictyophleba, also known as the sandhill wattle, [1] waxy wattle [2] feather veined wattle, [3] and spear tree, [4] is a shrub belonging to the genus Acacia and the subgenus Phyllodineae. The Nyangumarta peoples know the plant as Langkur or Lungkun; the Thalanyji know it as Jabandi; [3] and the Pintupi know it as mulyati. [4]

Contents

Description

The resinous shrub has a rounded or spreading habit and typically grows to a height of 0.6 to 4.0 metres (2 to 13 ft). It blooms from March to September and produces yellow flowers. [1] It is often sparingly branched with straight stems that are covered in light grey and smooth bark. The shiny phyllodes are dark green but age to grey-green or an attractive blue-grey colour. The phyllodes have an oblanceolate shape that are usually 5 to 8.5 centimetres (2.0 to 3.3 in) in length with a width of 9 to 28 millimetres (0.4 to 1.1 in). A white waxy surface bloom due to dry resin often covers he phyllodes. The simples inflorescences are scattered reasonably uniformly over the plants. the flower heads are globular or obloid in shape with a diameter of 9 to 13 mm (0.35 to 0.51 in). The heads are densely flowered with 40 to 60 or golden flowers per head. Following flowering seed pods will form, the light brown papery pods have a flat narrowly oblong shape and are 4 to 9 cm (1.6 to 3.5 in) long with a width of 10 to 16 mm (0.39 to 0.63 in) wide. The shiny brown seeds within the pod are an obloid to ellipsoid shape. [3]

Taxonomy

The species was first formally described by the botanist Ferdinand von Mueller in 1863 as part of the work Fragmenta Phytographiae Australiae . Synonyms for the species include; Acacia jensenii as described by Joseph Maiden and Racosperma dictyophlebum by Leslie Pedley. [5]

The species name is derived from the Greek words diktyon meaning net and phlebo- meaning vein referring to the minor nerves of the phyllodes which form a coarse network. [3] [2] The type specimen was collected by John McDouall Stuart near Mount Humphries in the Northern Territory during his last expedition. [6]

A. dictyophleba is closely related to A.melleodora , A. jensenii and A. sabulosa . [3]

Distribution

It is native to the desert areas of inland Australia; southern part of the Northern Territory, north-eastern South Australia and in southwest Queensland and Mid West regions of Western Australia. [3] It is also found in It is quite common throughout the Simpson Desert. [6] It is found in a range of soil types including stony loam, sandy loam or clay-loam. [1] The shrub is often part of in tall open shrubland or open low woodland communities containing various Acacia s and Eucalyptus species as well as spinifex and grassland communities. Sometimes small dense regrowth stands following fire will form. [3]

Uses

The plant, also known by the name spear tree, is used to make spears and digging sticks by the Aboriginal people of the Little Sandy Desert. [7]

The seeds are edible and the phyllodes can be chewed like tobacco. The phyllodes can be brewed to make tea which can be used to treat colds and headaches. The bark contains tannins and are astringent and can be used to treat diarrhoea and dysentery. The wood can be used as a fuel and to make fence posts. [8]

A. dictyophleba has potential as an ornamental plant, with its impressive flowering and attractive foliage. It is also a fast-growing tree that is also nitrogen fixing [8] as well as frost- and drought-tolerant. [9]

See also

Related Research Articles

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References

  1. 1 2 3 "Acacia dictyophleba". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. 1 2 "Acacia dictyophleba (Leguminosae) Waxy Wattle". Seeds of South Australia. Government of South Australia . Retrieved 20 August 2018.
  3. 1 2 3 4 5 6 7 "Acacia dictyophleba". Wattles of the Pilbara. Government of Western Australia . Retrieved 20 August 2018.
  4. 1 2 "Kiwirrkurra Indigenous Protected Area, Western Australia, 6–18 September 2015" (PDF). Bush Blitz Species Discovery Program. Australian Government . Retrieved 20 July 2022.
  5. ↑ "Acacia dictyophleba F.Muell". Atlas of Living Australia. Global Biodiversity Information Facility . Retrieved 20 August 2018.
  6. 1 2 "Acacia dictyophleba". World Wide Wattle. Western Australian Herbarium. Retrieved 20 August 2018.
  7. ↑ Pownall, Angela (1 August 2014). "Custodians open up Carnarvon Range". The West Australian . Retrieved 19 July 2022.
  8. 1 2 Ken Fern. "Acacia dictyophleba". Tropical Plants Database. Retrieved 20 August 2018.
  9. ↑ "Acacia dictyophleba". Alice Springs Town Council . Retrieved 20 August 2018.
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