The "letter" in the local letter should refer to "mushroom", a kind of edible fungus. There are other places called Tricholoma matsutake, and Zibo and Linyi are called "black lettuce". Stewed chicken and stew are all very good. It usually grows under pine trees. It's delicious. Generally, it can be bought in dry goods stores all over the country.

I'm from the fraternity, so don't deliberately mystify the local letter. Although it is a local feature, it is not local, it is imported from other places, and it is not produced by local bamboo forests at all. Do you have any pesticides? Is it planted artificially? I don't know. It's hard to say.