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SITE-SPECIFIC HEALTH AND SAFETY PLAN FOR WELL INSTALLATIONS <br />Other Site Hazards <br />May 4, 2017 <br />5.3.5 Poisonous Plants <br />Poison ivy, poison sumac, stinging nettles, blackberries, and other noxious or thorny plants may <br />be encountered on Site. <br />The compound leaves of poison ivy consist of three pointed leaflets; the middle leaflet <br />has a much longer stalk than the two side ones. The leaflet edges can be smooth or <br />toothed but are rarely lobed. The leaves vary greatly in size, from 8 to 55 mm (0.31" to <br />2.16") in length. They are reddish when they emerge in the spring, turn green during the <br />summer, and become various shades of yellow, orange or red in the autumn. Small <br />greenish flowers grow in bunches attached to the main stem close to where each leaf <br />joins it. Later in the season, clusters of poisonous, berrylike drupes form. They are whitish, <br />with a waxy look. <br />Poison Oak <br />Poison oak usually <br />does not climb as a vine, but occurs as a low growing shrub. Stems generally grow <br />upright. Leaflets occur in threes, as in other ivy, but are lobed, somewhat as the leaves <br />of some kinds of oak trees. <br />31