(mountain spray) is a common, branched, shrub-like species, producing woody stems lined with lobed leaves at alternate intervals, bearing flower clusters at the tip. Plants can grow very large; 10 feet across and 20 feet tall. Branches are reddish brown to grey, with peeling bark when old. Individual flowers are small, colored white to cream, or somewhat pinkish, formed of around ten petals and a center of both stamens and pistils (hermaphrodite). The small green leaves have pronounced veins, lobed edges, and relatively long stalks.