Hericium erinaceus original name: American black walnut use: used for refining industrial oil. There are many saplings in Henan, China, which were brought back by township leaders when they went to the United States for investigation. Originally, it was collected in China every year after going abroad, but no one came to collect it after two years. My father went to Henan around 2006, looking for Juglans regia. Then someone took the hedgehog out. As soon as he saw that this was not a hedgehog, he wanted more money, but they said that for 4 yuan, more and more people came to sell walnuts, which was as cheap as 1 yuan, and even didn't even press it in the end. When I arrived in Beijing, I went to Beijing West Railway Station to meet her. I was shocked. There are over 20 bags of walnuts. The big dipper pulled twice.