Spearwort is a wetland plant commonly found in marshy areas, where it thrives in moist soils and shallow water. It is easily identified by its shiny, yellow flowers with egg-shaped petals that grow on reddish-green stalks. The plant can range in height from 4 to 48 inches, with few shoots emerging from the main stem. While spearwort adds visual appeal to wetland environments, its growth may need management in certain areas to prevent it from overtaking native vegetation or obstructing water flow.