Relatively unknown and rarely studied, Ugni is a shrub from 30 cm to 170 cm tall with evergreen foliage. In some exceptional cases, the shrub can grow up to 3 m in height. The leaves are opposite, oval, 1–2 cm long and 1-1.5 cm broad, entire, glossy dark green, with a spicy scent if crushed. The flowers are drooping, 1 cm diameter with four or five white or pale pink petals and numerous short stamens; the fruit is a small red, white or purple berry 1 cm diameter. In its natural habitat; the Valdivian temperate rain forests the fruit matures in autumn from March to May.