Genus Populus, L. (Aspen, Poplar)
Leaves - simple; alternate; edge finely and rather sharply toothed. Outline - egg-shape. Apex - taper-pointed. Base - rounded. Leaf/Stem - nearly smooth, the lower half rounded, the upper part only slightly flattened. Leaf/Bud - in the spring is large and yellow, and covered with a fragrant gum (as, to some extent, are the buds of most of the poplars). Leaf - four to six inches long; when young, yellowish above, becoming bright green; whitish, and "net-veined" below; smooth. Found - in Northern New England, Central Michigan, and Minnesota, and far northward. General Information - A tree sixty to seventy feet high, with very light and soft wood.
Newhall, Charles S. The Trees of North-Eastern America (New York: The Knickerbocker Press, 1900) 93
Courtesy the private collection of Roy Winkelman