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Gigantic ferns 1m in diameter were the dominant species on land about 340,000,000 years ago. After years of fossilization, they became the major sources of petroleum, coal and wood fossils today. In addition to greening the environment, ferns are good for building columns and beams and landscaping. Their fresh leaves can be turned into delicious dishes, and their capillaries are good haemostatic ingredient. In fact, the practical values of ferns benefit humans much. There are about 600 species of native ferns in Taiwan, and the Taiwan Native Fern Area has collected over 300 species. As the collection is rich and multidimensional, the area is an ideal classroom of Taiwan native ferns.