Silvangia

Silvangia is a planet that has an abundance of colossal trees, made possible due to a Black. The planet consists of lakes, forests, rivers, and other plantlife in some cases.

Sunlight
Due to the giant trees, most sunlight is covered, though the giant trees don't block out all of the sunlight. Flora on the ground may be hurt by this, and oftentimes, you'll see empty patches of ground, where plants can't grow.