Definition of bottle tree in US English:

bottle tree

noun

  • Either of two Australian trees with swollen bottle-shaped trunks containing water.

    a relative of the flame tree occurring in Queensland (Brachychiton rupestre, family Sterculiaceae)

    the Australian baobab of the Kimberley region (Adansonia gregorii, family Bombacaceae)

    • ‘Not wanting to be seen, she ducked behind a bottle tree, peering suspiciously into the car.’
    • ‘85 years ago, the people of Roma planted a series of bottle trees, each one marking a local soldier who had died during World War One.’