The long and narrow rhizomes crawl sideways and breed with toothpicks in the basement. The root leaves are bird-legged double leaves, 5 small leaves, fallen egg shape, glossy and slightly thick. The leaflet splits in three, the base is wedge-shaped, there is almost no petiole, and there are sharp saw blades at the edges. Bring out a brownish flower stalk that is 4 to 15 cm high and place one flower facing upward. The diameter of the flower is 1.2 to 1.8 cm, and the white petals look like 5 pieces of sepals and are oval. The petals secrete nectar and are yellow and smaller than the sepals. The fruit is opened like a squirrel in a boat-like bag, the length of the bag is 6 to 9 mm, and the length of the bag is 5 to 6 mm.