Quercus
Quercus (also known as Quercus, common name oak, oak or oak) is a genus of Fagaceae. There are 600 species of Quercus, of which 450 are from subgenus Quercus and 150 are subgenus of Quercus. They are distributed in the northern hemisphere region, mainly in North America and in the Chinese name oak, often and tropical areas of the "rubber tree" confused, so the Chinese name is not so accurate, and the oak in the rain forest is also distributed. ...