Acacia microbotrya

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Manna wattle
Acacia-microbotrya.JPG
A. microbotrya foliage
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. microbotrya
Binomial name
Acacia microbotrya
Acacia microbotryaDistMap594.png
Occurrence data from AVH

Acacia microbotrya, commonly known as manna wattle or gum wattle, [1] is a shrub or tree belonging to the genus Acacia and the subgenus Phyllodineae that is native to Western Australia.

Contents

The Noongar peoples know the tree as Badjong, Galyang, Koonert or Menna. [2]

Description

The bushy shrub or tree typically grows to a height of 2 to 7 metres (7 to 23 ft) [3] with the canopy spreading to a width of 5 m (16 ft). [1] It has glabrous branchlets with rough brown bark on the stem. The patent to pendulous grey-green phyllodes have a narrowly elliptic to oblanceolate shape. Each olive green glabrous phyllode is 5 to 14 centimetres (2 to 6 in) and are 5 to 20 millimetres (0.20 to 0.79 in) wide. [4] It blooms from March to August and produces yellow-cream flowers. [3] The inflorescences are racemose with the axes having a length of 1.5 to 4 centimetres (0.59 to 1.57 in), the cream to pale yellow globular heads containing 20 to 30 flowers have a diameter of 4 to 6 millimetres (0.16 to 0.24 in). Following flowering dark brown to blackish glabrous seed pods form are constricted at regular intervals resembling a string of beads in shape with a length of 15 to 20 cm (6 to 8 in) and a width of 6 to 8 millimetres (0.24 to 0.31 in). The shiny black seeds have an oblong to elliptic shape with a length of 5.5 to 8 mm (0.22 to 0.31 in) and a width of 4 to 5 millimetres (0.16 to 0.20 in). [4]

Taxonomy

The species was first formally described by the botanist George Bentham in 1842 as part of William Jackson Hooker's work Notes on Mimoseae, with a synopsis of species as published in the London Journal of Botany. It was reclassified as Racosperma microbotryum in 2003 by Leslie Pedley then transferred back to the genus Acacia in 2014. [5]

A. microbotrya is very closely related to Acacia amblyophylla and Acacia jennerae but strongly resembles Acacia galeata and Acacia saligna . [4]

There are two recognised variations:

Distribution

It is native to an area in the Wheatbelt, Great Southern and Goldfields-Esperance regions of Western Australia where it grows among rocky outcrops, near watercourses, around salt lakes and along road verges in clay loam or sandy loam soils often over granite. [3] The bulk of the population is from Kalbarri south east to around Katanning with scattered populations further east near Ongerup and Lake King. [4]

Cultivation

The plant is commercially available in seed form or as tubestock. It is commonly used in native gardens as in land rehabilitation an ornamental, as a windbreak, for shelter and for sandalwood. It is fast growing is salt tolerant and will survive in waterlogged areas. [6]

See also

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References

  1. 1 2 "Acacia microbotrya". Plant This. Retrieved 4 September 2018.
  2. ↑ "Noongar names for plants". kippleonline.net. Archived from the original on 2016-11-20. Retrieved 24 November 2016.
  3. 1 2 3 "Acacia microbotrya". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 3 4 5 "Acacia microbotrya". World Wide Wattle. Western Australian Herbarium. Retrieved 4 September 2018.
  5. ↑ "Acacia microbotrya Benth". Atlas of Living Australia. Global Biodiversity Information Facility . Retrieved 4 September 2018.
  6. ↑ "Acacia microbotrya (Manna Wattle)". Westgrow Farm Trees. Retrieved 4 September 2018.
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