Forest introduction: The vegetation of the Hongya Grand Canyon is well preserved, with a forest coverage rate of more than 85% and a wide variety of species. There are 233 species of woody plants belonging to 99 genera and 44 families; there are more than 500 species of grasses and plants in 62 families. There are also countless precious Chinese medicinal materials such as "Lingzhi Grass", "Wulingzhi", "Pork Root", "Cangpu", "Codonopsis", etc., which are known as the "Treasure House of Biodiversity".