Brachychiton rupestris is a member of the Sterculiaceae family and is commonly referred to as the Queensland Bottle Tree, Queensland-Flaschenbaum, or the Narrowleaf Bottle Tree or Kurrajong. The common name “bottle tree” refers to the characteristic trunk of the tree, which can reach a 2 m diameter. The height of the tree is less impressive, with a maximum height of 18-20 m, smaller in cultivation; the canopy spans 5-12 m in diameter. The tree will drop its leaves before the flowering period, which are between the months of October and December. The characteristic bottle shape should develop in approximately five to eight years. The canopy will also thin out during a drought.
The species is endemic to a limited region of Australia namely Central Queensland through to northern New South Wales. It grows in a soil that consists of a medium to heavy clay, silt, sand and volcanic rocks. Yet the tree is quite hardy and can tolerate a variety of climates and soil types . It has been cultivated in southern Australia for many decades and can be seen as an ornamental feature around the world.
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