Mankind has used herbs and spices as medicine since the very beginning. Herbs come from the leafy green part of the plant. Spices are parts of the plant other than the leaves, such as the root, stem, bulb, bark, or seeds.
Then God said, “Let the land produce vegetation: seed-bearing plants and trees on the land that bear fruit with seed in it, according to their various kinds.” And it was so. (Genesis 1:11 NIV)