The Swamp spurge (Euphorbia palustris) belongs to Euphorbiaceae (the Spurge family). It is a perennial herb that is native to Europe. The height will be 50-150 cm. The leaves are lanceolate and alternate. From April to June, it branches into umbel-like at the tip of the stem and bears small cyathia. The flowers are barely noticeable, but the bracts that surround them turn yellow. In fall, the leaves turn orange or yellow. Since there is no deer feeding damage, it will be planted on the edges of forest gardens.