Acacia caerulescens

Acacia caerulescens, commonly known as limestone blue wattle, Buchan blue or Buchan blue wattle is a tree species that is endemic to south eastern Australia

Limestone blue wattle
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Clade: Mimosoideae
Genus: Acacia
Species:
A. caerulescens
Binomial name
Acacia caerulescens
Occurrence data from AVH
Synonyms

Racosperma caerulescens (Maslin & Court) Pedley

Description

The tree grows to between 10 to 15 m (33 to 49 ft) in height and has a pyramidal habit with glabrous branchlets that have a fine white powdery coating. Like most species of Acacia it has phyllodes rather than true leaves. The evergreen phyllodes have an obovate to oblanceolate or sometimes narrowly elliptic shape with a length of 4 to 8 cm (1.6 to 3.1 in) and a width of 1.5 to 3 mm (0.059 to 0.118 in). The lemon yellow globular flowerheads appear in racemes from November to December in the species' native range, followed by seed pods that are 5 to 12 cm long and 1.4 to 2.2 cm wide.[3]

Taxonomy

The species was formally described in 1989 based on plant material collected near Buchan in Gippsland.[3][4]

Distribution

It has a limited distribution in Victoria where it is only found in the Lakes Enternace and Buchan areas. It is found as remnant populations mostly in clay soils over limestone as a part of Eucalyptus woodland communities. Its natural habitat is under threat of land clearing.[3]

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See also

List of Acacia species

References
  1. Department of Sustainability, Environment, Water, Population and Communities. "Acacia caerulescens — Limestone Blue Wattle, Buchan Blue, Buchan Blue Wattle". Species Profile and Threats Database. Canberra, Australian Capital Territory: Commonwealth of Australia. Retrieved 28 January 2013.
  2. "Acacia caerulescens ". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 28 January 2013.
  3. "Acacia caerulescens ". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  4. Carter, Oberon; Walsh, Neville (November 2006). "National Recovery Plan for Limestone Blue Wattle - Acacia caerulescens" (PDF). State of Victoria Department of Sustainability and Environment. Archived from the original (PDF) on 22 March 2012. Retrieved 28 January 2013.
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