Here are some contenders for the title, with caveats:
1. Hyperion (California, USA):
* Species: Redwood (Sequoia sempervirens)
* Height: 380.1 feet (115.85 meters)
* Claim to fame: Currently the tallest tree measured by humans.
* Caveat: Its exact location is kept secret to protect it from vandalism and damage.
2. General Sherman (California, USA):
* Species: Giant sequoia (Sequoiadendron giganteum)
* Height: 275 feet (83.8 meters)
* Claim to fame: While not the tallest by height, it is the largest tree in the world by volume. It's estimated to contain over 52,500 cubic feet (1,487 cubic meters) of wood.
* Caveat: Giant sequoias are often larger in volume than redwoods, even if they are shorter.
3. Other contenders:
* The "Doerner Redwood" (California, USA): A redwood thought to have been taller than Hyperion, but it was destroyed by a storm in 2006.
* "The Lost Monarch" (California, USA): Another redwood, thought to be taller than Hyperion but not properly measured before it was cut down for lumber in the 19th century.
* Australian Mountain Ash (Eucalyptus regnans): While not as tall as the tallest redwoods, these trees can reach heights of over 330 feet (100 meters).
Important Note: The tallest tree record is constantly changing. New trees are discovered and measured, and existing trees grow taller over time.