Pteridium aquilinum, also known as fist dish, cat's paw and leading dish.
Pteridium aquilinum includes sweet Pteridium aquilinum and bitter Pteridium aquilinum. Generally, if the bracken is bright in color and tender in stem, but bitter in taste, this is the bitter bracken we often eat, which can protect ourselves during the growth stage to prevent insects from invading our bitter taste. It is harmless to human body and can be eaten directly.
In addition, the bitter taste of bracken may be caused by the storage process, because the storage time of bracken is relatively short, and it is easy to get wet if it is not properly stored, and then it will turn sour and bitter. If this is the reason, it may cause some gastrointestinal diseases such as diarrhea, and it is not recommended to continue eating bracken.