scum that gets particularly thick in eddies where the current slows. Look closer at those side ponds, and you’ll see the helicopter seeds of ash, maple and box elder, as well as floating chestnuts, pine cones, and the seed pods of American elm.As annoying as the cottonwood seeds can be, they are taking the current for an important ride. After the breeze drops them into the river, the river carries them to a place where they can wash ashore and take root.
© 2009 Mike D. Anderson, St. Michael, MN. All rights reserved.
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