The bitterness will cause irritation to the stomach, it may not be handled well, the remaining more bitter elements, or cooking practices problems, and dry fern is generally preserved after removing the bitter taste and other processes.

The fern, belonging to the family of fenugreek ferns, genus Fern, also known as beet, Buddha's hand, also known as auspicious vegetable, dragon claw vegetable, dragon head vegetable, powder fern, fist fern, mountain fenugreek.