Macadamia integrifolia, Macadamia tetraphylla, Macadamia ternifolia, and Macadamia jansenii are the four species that make up the genus Macadamia, which is indigenous to eastern Australia.

Different nut sizes from Nuts from Macadamia integrifolia and M. jansenii. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by ...