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River's Park Edge and its partners are pleased to offer all visitors a fun, educational challenge to locate ecological clues thoughout the park.
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Cottonwood trees
The Eastern cottonwood (Populus deltoides) is a fast-growing tree native to Iowa and commonly found along the Missouri River.
These trees can reach 50-80 feet tall, grow rapidly – sometimes as much as 6 feet per year – and live up to 100 years under the right conditions. In spring, they release fluffy white seeds that drift like cotton through the air.
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Cottonwoods play an important role in the river ecosystem.
These trees provide habitat for wildlife. Birds and squirrels use their branches for nesting and perching, while cavities in older trees shelter owls, woodpeckers, and bats. Insects feed on the leaves, and seeds offer food for birds and small mammals. Their roots also stabilize riverbanks, creating shelter for fish, amphibians, and invertebrates. Along the Missouri River, Cottonwoods are a key part of the Riparian zone, helping maintain a healthy, balanced ecosystem.
Learn more about these giants from the experts at Iowa State.