Peanut, green bristlegrass and peach tree are composed of three different plants. Peanut is a leguminous plant whose fruit grows underground. Setaria viridis is a Gramineae plant, which is common in grassland or grassland. Peach tree is a kind of Rosaceae plant, which is widely used in gardening and fruit tree planting. These three plants belong to different groups in biology and have no direct genetic relationship.