Short answers, pulled from the story.
The tallest trees in these forests can reach heights exceeding one hundred meters. This vertical complexity defines the temperate broadleaf and mixed forest biome as a habitat type recognized by the World Wide Fund for Nature as one of the most distinct on Earth.
These forests are richest and most distinctive in central China and eastern North America, yet they stretch across the globe to include the Himalayas, Western and Central Europe, and the southern coast of the Black Sea. They appear in zones south of the tundra and the generally subarctic taiga.
The structure follows a precise four-layered hierarchy that supports a vast array of life. The layers include the uppermost canopy, a three-layered understory, the sub-canopy, the shrub layer, and the ground cover or herbaceous layer.
In the Northern Hemisphere, the dominant broadleaf trees include oaks, beeches, maples, and birches. Coniferous trees such as pines, firs, and spruces often join them to form mixed forests.
The Southern Hemisphere hosts its own unique guardians, with endemic genera such as Nothofagus and Eucalyptus occupying this biome. Most coniferous trees, including members of the Araucariaceae and Podocarpaceae families, occur in mixtures with broadleaf species.
Annual rainfall is typically over one thousand millimeters and often exceeds two thousand millimeters. In the mountains of New Zealand and the Azores, rainfall can approach three thousand millimeters, creating some of the wettest temperate forests on the planet.