Meryta sinclairii, commonly known as the puka or pukanui, is a large-leafed evergreen tree endemic to New Zealand that grows to about 8 metres (26 feet) tall, with the distinctly tropical appearance typical of the genus. There are about 27 species of Meryta, all small, resinous trees of the subtropical and tropical Pacific Ocean.

Puka occurs naturally on the Three Kings Islands (c. 34°S, 172°W) and the Hen and Chickens Islands (c. 36°S, 175°W) where it occurs in greater abundance in the relatively sheltered valleys, where soils are thick and conditions are relatively moist, rather than on the exposed ridge-tops. However, puka can also grow on cliffs with shallow, stony soils which suggests some tolerance of drought.

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