Leafy spurge, a member of the Spurge family, was introduced from Europe. It is a creeping perennial that reproduces by seed and extensive creeping roots. The roots can extend as deep as 30 feet from a plant that grows 1 to 3 feet tall, with pale green shoots and small yellow-green flowers. The plant, including the root, has milky latex that is damaging to eyes and sensitive skin. Leafy spurge is an extremely difficult plant to control because of its extensive sprouting root. It is adapted to a wide variety of Colorado habitats and is very competitive with other plant species. If it becomes established in rangeland, pasture, and riparian sites, it may exclude all other vegetation due to its competitive nature. There is plant is found scattered in the Wallace Creek area and there are a few plants found on the I-70 right-of-way west of Glenwood Springs.