The stem of peony is made of wood. After falling leaves, some parts will not wither. The stem of peony is made of grass. After falling leaves, the ground part will wither. This is the essential difference between them. One herb and one woody plant can be seen from the stem.
The flowers of peony are all single and large, while the flowers of peony are one or several and small.
The surface of peony leaves is green with yellow color, without hair, and there are powder things below; the surface of peony leaves is thick green and the leaves are dense.
Peony blooms in March, while peony blooms in late spring and early summer. You can also judge which is peony and which is peony from the flowering period.