Macadamia ternifolia

Macadamia ternifolia is a species of tree in the family Proteaceae, native to Australia. It is known by a variety of common names, including macadamia nut and Queensland nut. The tree is commercially important for its fruit, the macadamia nut, which is a popular food item and export product.

Description

Macadamia ternifolia is an evergreen tree that grows to a height of 2–12 m. The leaves are arranged in whorls of three to six, lanceolate to obovate or elliptical in shape, 6–30 cm long and 2–13 cm broad, with an entire or spiny-serrated margin. The flowers are produced in a long, slender, simple raceme 5–30 cm long, the individual flowers 10–15 mm long, white to pink or purple, with four tepals.

Distribution and habitat

The species is native to the rainforests of eastern Australia, from southeastern Queensland to northeastern New South Wales. It is found in coastal rainforests and moist eucalypt forests, often in the understorey.

Cultivation and uses

Macadamia ternifolia is cultivated for its nut, which is eaten both raw and cooked. The nut is also used in the production of oil for cooking and cosmetics. The tree is also grown as an ornamental for its glossy foliage and attractive flowers.

Conservation

While the species is not currently considered threatened, its habitat is under pressure from deforestation for agriculture and urban development. Conservation efforts are focused on protecting existing populations and promoting sustainable cultivation practices.

See also

• Macadamia integrifolia
• Macadamia tetraphylla

References

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