Introduction to the Oil Botanical Garden: Displays plant species that can extract oil. More than 20 kinds of oil-bearing plants have been collected in the park, mainly including Camellia, Onapaceae, Leguminosae, Asteraceae, Euphorbiaceae, and Dogwood plants, including Cinnamomum camphora, camellia oleifera, flax, evening primrose, borage and Ricinus et al.