Macadamia integrifolia
Inflorenscences and foliages of Macadamia integrifolia at Geebung, Queensland
Different stages of Macadamia integrifolia nut
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Macadamia
M. integrifolia
Binomial name
Macadamia integrifolia

Macadamia integrifolia is a small to medium-sized tree, growing to 15 metres in height. Native to rainforests in south east Queensland and northern New South Wales, Australia. Common names include macadamia, smooth-shelled macadamia, bush nut, Queensland nut, Bauple nut and nut oak.[2]


Macadamia integrifolia leaves are simple, oblong in shape, glossy, entire with wavy leaf margins and are 20 cm long and 10 cm wide.[3] The flowers are white or pink followed by woody, edible rounded fruits[4] which are 2 to 3.5 cm in diameter.

This tree is rarely cultivated for ornamental purposes.[2]

It has been introduced to Mexico and has done well in the states of Michoacán and Jalisco.[5]

The trees will survive in hardiness zones 10 and 11.[citation needed]

The trees in Australia can be affected by a fungal pathogens from the Neopestalotiopsis genus and the Pestalotiopsis genus (both are within Sporocadaceae family), they both cause flower blight.[6][7]

See also


  1. ^ Forster, P.; Griffith, S.; Ford, A.; Benwell, A. (2020). "Macadamia integrifolia". IUCN Red List of Threatened Species. 2020: e.T113180064A113310165. doi:10.2305/IUCN.UK.2020-3.RLTS.T113180064A113310165.en. Retrieved 18 November 2021.
  2. ^ a b Department of the Environment (2020). "Species Profile and Threats Database: Macadamia integrifolia". Department of the Environment, Canberra.
  3. ^ "Australian Native Plants Society (Australia)".
  4. ^ Hargreaves, Dorothy; Hargreaves, Bob (1964). Tropical Trees of Hawaii. Kailua, Hawaii: Hargreaves. p. 40.
  5. ^ Marisela Taboada & Rogelio Oliver Guadarrama. 2004. Cultivos alternativos en México. Universidad Autónoma del Estado de Morelos. Centro de Investigaciones Biológicas. AGT Editor S.A. Mexico City, Mexico. ISBN 968-463-120-0
  6. ^ Prasannath, Kandeeparoopan; Shivas, Roger G.; Galea, Victor J.; Akinsanmi, Olufemi A. (17 September 2021). "Neopestalotiopsis Species Associated with Flower Diseases of Macadamia integrifolia in Australia". J Fungi (Basel). 7 (9): 771. doi:10.3390/jof7090771. PMC 8471233. PMID 34575809.
  7. ^ Akinsanmi, O.A.; Nisa, S.; Jeffego, O.S.; Drenth, A. (2016). "Multiple Pestalotiopsis and Neopestalotiopsis species cause flower blight of macadamia in Australia". Phytopathology. 106 (12): 122‑122.

Other sources