Cottonwood trees disperse seeds via wind, using white, fluffy tufts. This typically lasts four weeks, from late May to late June. The trees are common in Michigan's Lower Peninsula, growing near ...

A spruce is a tree of the genus Picea, a genus of about 35 species of coniferous evergreen trees in the Family Pinaceae, found in the northern temperate and boreal (taiga) regions of the earth. In ...