Macadamia integrifolia (Macadamia)

Native to rainforests from southeastern Queensland to northeastern New South Wales in Australia, this plant is an evergreen tree. Its fragrant white flowers hang in long clusters. A green husk surrounds the hard, smooth shell, which encloses a creamy-white kernel with a rich, slightly sweet flavor. The kernels are eaten raw or roasted and used in confectionery and baked goods. The species is grown commercially in tropical and subtropical regions, and it is cultivated in Colombia. Despite this widespread cultivation, its wild populations are listed as vulnerable on the IUCN Red List. The nuts are poisonous to dogs and can cause weakness, vomiting and tremors. Photographed in Colombia.