The Australian Acacia Tree is composed of three species: WATTLE (6 letters), Myall (5 letters), and Brigalow (8 letters). WATTLE is a genus of shrubs and trees native to Australia and New Guinea, with over 1, 000 species. Myall is a species of Acacia found in eastern Australia, and is known for its hard wood and yellow flowers. Brigalow is a species of Acacia found in Australia, and is known for its dense foliage and fragrant flowers.