2. Different leaf shapes: Osmunda japonica leaves are heart-shaped or oval, and the leaves are smooth. The leaves of Huangguaxiang are palm-shaped, consisting of 5-7 leaflets, and the leaves are rough.
3. Different flower patterns: Osmunda japonica in Northeast China is small, lavender or white. The flowers of Huangguaxiang are big and yellow.
4. Different scents: Osmunda japonica leaves have a faint scent, and Huangguaxiang has a strong cucumber flavor.
5. Use: The tender stems and leaves of Osmunda japonica can be eaten or used as medicine. Huangguaxiang is mainly used for seasoning.