Hyperion

Hyperion is a coast redwood (Sequoia sempervirens D.Don, Endl.) tree in California, which is the world's tallest known living tree, measured at 116.22 metres (381.3 ft) tall in 2026.

Hyperion was discovered on August 25, 2006, by the naturalists Chris Atkins and Michael Taylor. The tree height of 115.55 m (379.1 ft) was verified by Stephen Sillett in 2006 by use of both a laser range finder and a fiberglass tape to measure the tree from the base to the crown. The tree has grown since then to reach 116.07 metres (380.8 ft) recorded in 2019. Hyperion was found in a remote area of Redwood National Park, inside of the originally designated park boundaries of 1968. The park also houses the second-, fourth- and fifth-tallest known trees, coast redwoods named Helios, Icarus, and Daedalus, which respectively measured 377, 371 and 363 feet in 2022.