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. ~.. <br />III. Identification and Inventory <br />The Gunnison County Weed Coordinator has identified the following weeds growing in <br />and around the gravel pit: Canada thistle, yellow toadflax, scentless chamomile, oxeye <br />daisy and hoary cress. There is leafy spurge growing south of the gravel pit along the <br />bike path and Highway 135. <br />A. Weed Species and Description <br />Canada thistle, Cirsium arvense, was introduced from Europe. It is a creeping perennial <br />that reproduces by seeds and fleshy, horizontal roots. It is one of the most widespread, <br />and economically damaging noxious weeds in Colorado. Because of its seeding habits, <br />vigorous growth, and extensive underground root system, control or eradication is <br />difficult. <br />Hoary cress, Cardaria draba, is a creeping perennial which reproduces by seed and <br />creeping roots. Hoary cress is one of the earliest perennial weeds to emerge in the spring. <br />Flowers are produced in late April and May. It grows in disturbed areas and is capable of <br />vigorous growth on alkaline soils of western Colorado and the west. <br />Leafy spurge, Euphorbia esula, is a creeping perennial which reproduces by seed and <br />extensive creeping roots. The roots can extend as deep as 30 feet below the soil surface <br />and are extremely wide spreading. Leaves are alternate, narrowly linear with smooth <br />margins, about %4 inch wide, and 1 to 4 inches long. The small yellow-green flowers are <br />enclosed by apair ofyellowish-green, heart-shaped bracts. The plant, including the root, <br />has milky latex that is damaging to eyes and sensitive skin. <br />Oxeye daisy, Chrysantheum leucanthemum, is an erect perennial plant with white ray <br />and yellow disk flowers which bloom from June through August. Oxeye daisy is <br />transplanted as an omamenta] despite its tendency to crowd out more desirable <br />vegetation. <br />Yellow toadflax, Linaria vulgaris, sometimes called butter and eggs, resembles the <br />snapdragon in appearance. It is a perennial reproducing from seed, as well as from <br />underground root stalk. The stems of yellow toadflax are from 8 inches to 2 feet tall and <br />leafy. The leaves are pale green, alternate, narrow, and pointed at both ends. The <br />flowers are bright yellow with deep orange centers. <br />All County andlor State listed noxious weeds found on the property will be controlled <br />and/or eradicated. <br />B. Specific location of infestation(s) on land (Wetland, along ditch, fence line, etc.) <br />Canada thistle, scentless chamomile and yellow toadflax are growing around the <br />perimeter and adjacent lands. The hoary cress is associated with Highway 135. Leafy <br />spurge is growing south of the gravel pit along the bike path and Highway 135. <br />