Edible nut of a group of trees native to Australia (especially M. ternifolia), and cultivated in Hawaii, South Africa, Zimbabwe, and Malawi. The nuts are slow-growing; they are harvested when they drop. (Genus Macadamia, family Proteaceae.)
The ‘Sun of May’ was added in 1818. The blue bands are a shade known as ‘celeste’, said to be the colour of the sky which inspired Argentine revolutionary Manuel Belgrano before battle. Effective date: 16 August 1985.