Smooth-barked kauri, also known as Queensland kauri

Smooth-barked kauri is a coniferous evergreen tree reaching up to 80 feet (24 meters) in cultivated environments and up to 150 feet (45 meters) in natural habitats. It features a prominently straight and often spirally twisted trunk with a light grey-brown, flaking bark revealing a lighter layer beneath. The leaves are leathery, elliptic, and arranged either oppositely or spirally, measuring 3 to 4 inches (7.5 to 10 cm) long and 1 to 2 inches (2.5 to 5 cm) wide. This monoecious species produces separate male and female cones on the same plant. The cylindrical male (pollen) cones are reddish-brown, about 2 to 3 inches (5 to 7.5 cm) long, and curl slightly upon falling. The female (seed) cones are rounded, 4 to 6 inches (10 to 15 cm) tall, and transition from green to brown as they mature.