It depends what Plant.
Plant foods have them.Green parts from plants have both.
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The aerial parts of the plant are used medicinally.
Plant tissues that conduct foods made in the leaves to all other parts of the plant. See related questions
The parts used medicinally are the whole plant and root, or rhizome, which is collected in the fall.
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All parts of the plant are used, from the seeds to the roots.
Chinese medicine uses various parts of the plant, the shoots and leaves.
The leaves and roots of the belladonna plant.
The medicinal parts of alfalfa are the whole plant and the seeds.
whole plant is used for medicine
All parts of the plant--the seeds, leaves and vines--are used for medicinal purposes, but the actual fruit of the bitter melon is most commonly used.