'Trees' in the Bible

Do no damage to the earth, or the sea, or the trees, till we have put a mark on the servants of our God.

And at the sounding of the first, a rain of ice and fire, mixed with blood, was sent on the earth: and a third part of the earth, and of the trees, and all green grass was burned up.

These are the two olive-trees and the two lights, which are before the Lord of the earth.