1, Pleurotus nebrodensis, scientific name F.var.velutipus, new scientific name "F.filiformis", belongs to the same kind of Flammulina velutipes.

2. Its stipe cap is white, small and exquisite, white all over, and looks like a silver needle, so it is named "Silver Needle Mushroom", also known as White Flammulina velutipes.

3. Flammulina velutipes is another Flammulina velutipes strain cultivated artificially. In fact, the Flammulina velutipes we usually eat are basically Flammulina velutipes.

4. So the substitute of Flammulina velutipes is Agaricus blazei.