Emergent trees
Emergent trees rise above the forest canopy, reaching for light and shaping the skyline with their towering forms. These giants have evolved remarkable adaptations to survive in the exposed upper layers of the forest, from sturdy, wind-resistant trunks to wide crowns and tough leaves that help them thrive in harsh conditions.
On Tiritiri Matangi, pōhutukawa lines the coast with its thick, leathery leaves that reduce water loss and resist salt spray, perfect for windy, sun-exposed environments. Its vibrant red flowers bloom in summer, offering rich nectar for tūī and korimako. Rewarewa grows tall and slender, adapted for dense forest growth, with narrow, toothed leaves that reduce moisture loss and help funnel rain to its roots. In spring, its brush-like flowers attract birds and insects. Kahikatea, New Zealand’s tallest native tree, is slowly returning to the island’s damp gullies. Its small, narrow leaves are well-suited to shedding water in wet environments, and its towering trunk is supported by buttressed roots that anchor it in soft, swampy soils.
Together, these emergent species not only dominate the skyline but also provide food, shelter, and vital structure for the entire forest ecosystem.
Pōhutukawa (Metrosideros excelsa)
Pōhutukawa is one of New Zealand’s most iconic trees, known for its brilliant red flowers blooming around Christmas. This coastal species, with its rounded canopy and tough wood, thrives in windy, salty conditions. Its thick leaves, with felt-like hairs underneath, help reduce moisture loss. Flowering from November to February, pōhutukawa provides vital nectar for birds, geckos, and insects. Māori gathered this nectar and used the strong wood for tools, while early settlers used its curved branches in boatbuilding. As a hardy pioneer species, it was key to Tiritiri Matangi’s reforestation. Metrosideros, its genus, spans the Pacific, with 12 species native to Aotearoa.
Rewarewa (Knightia excelsa)
Rewarewa is a tall, narrow tree reaching up to 30 metres, found throughout the North Island and the northeast tip of the South Island. A member of the protea family, its thick, coarsely toothed leaves and striking columnar form make it easily recognisable. In spring and early summer, it produces velvety red flowers without petals, modified sepals form a tube that curls back to reveal pollen, while glands at the base release nectar for birds and insects. The fruit is a dry capsule that splits after a year to release winged seeds. Rewarewa is the only species in the endemic genus Knightia, named after English botanist Thomas Knight.
Tōtara is a long-lived canopy conifer that can grow up to 30 metres tall, with massive trunks up to 3 metres wide and thick, stringy bark. Found throughout New Zealand, it produces red, fleshy fruit tipped with a small seed, which is eaten by birds and was also gathered by Māori. Male and female cones grow on separate trees. Tōtara timber was prized by Māori for building waka, houses, and tools, while the bark was used for weaving, thatching, and fire-making. On Tiritiri Matangi, one mature tōtara survived farming and became the seed source for regeneration across the island.
Kahikatea is New Zealand’s tallest native tree, once common in swampy lowland forests. On Tiritiri Matangi, it’s found in damp gullies where conditions support its growth. With its straight trunk, soft needle-like leaves, and flaking bark, kahikatea adds height and diversity to the forest. In autumn, it produces small orange-red fruit that attract birds like kererū, helping disperse its seeds. Although not widespread on the island yet, young kahikatea are establishing well as part of Tiritiri’s ongoing forest restoration.
Click the links below to explore each layer of the forest and discover the native species that live there.