Macadamia
| Macadamia | |
|---|---|
 | |
| Macadamia nuts | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Subfamily: | Grevilleoideae |
| Tribe: | Macadamieae |
| Subtribe: | Macadamiinae |
| Genus: | Macadamia F.Muell. |
| Type species | |
| Macadamia integrifolia | |
| Species | |
| |
Macadamia is a genus of four species of trees in the flowering plant family Proteaceae. They are indigenous to Australia—specifically, northeastern New South Wales and central and southeastern Queensland. Two species of the genus are commercially important for their fruit, the macadamia nut /ˌmækəˈdeɪmiə/ (or simply macadamia). Global production in 2025 was 344,000 tonnes (379,000 short tons). Other names include Queensland nut, bush nut, maroochi nut or bauple nut. It was an important source of bushfood for the Aboriginal peoples.
The nut was first commercially produced on a wide scale in Hawaii, where Australian seeds were introduced in the 1880s, and which for more than a century was the world's largest producer. South Africa has been the world's largest producer of the macadamia since the 2010s.
The macadamia is the only widely grown food plant that is native to Australia.