Definition of Moreton Bay chestnut in English:

Moreton Bay chestnut

noun

  • A large tree with red and yellow flowers and decorative timber, native to Queensland, Australia. Its heavy pods contain large poisonous seeds.

    Castanospermum australe, family Leguminosae

    Also called black bean
    • ‘One current path of research involves an Australian rain forest tree, the Moreton Bay chestnut.’
    • ‘Edible varieties of beans and peas include Moreton Bay chestnuts and matchbox bean.’
    • ‘An unusual and rare tree was planted on the west side of the new garden called a Moreton Bay Chestnut’

Origin

Mid 19th century: so named because the tree was first found near Moreton Bay, Queensland.