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Field Guide / Trees & Plants

Eastern Cottonwood

Populus deltoides

A fast-growing riverside tree with triangular leaves that flutter in the slightest breeze and cottony seeds in late spring.

Colored-pencil illustration of an eastern cottonwood branch with broad pointed toothed leaves on long stalks
AI-generated illustration for general reference. Leaf size, shape, and color vary by tree, season, and region. Confirm an identification with a regional field guide before you rely on it.
Type
Hardwoods
Leaves
Unlobed leaves
Region
Midwest & Plains, Southeast, Northeast
Typical size
70–100 ft tall, with a trunk 3–5 ft across
Range
Eastern and central United States, along rivers, and across the Great Plains
Look for it
Late spring, when cottony seeds drift, and fall, when leaves turn yellow

How to identify it

  • Leaves are triangular with coarse teeth and a flattened leaf stalk, so they rattle and shimmer.
  • Bark is pale and smooth when young, and deeply furrowed gray on older trees.
  • Seeds float on cotton-like fluff.
  • Grows along rivers and streams.

Often confused with

Why it matters outdoors

  • Deer browse young shoots, and bald eagles and herons use tall cottonwoods as perches.
  • Poor firewood: it burns slowly, smokes, and gives little heat.
  • Large riverside cottonwoods mark water and wildlife travel corridors on the Plains.

Field notes

Cottonwoods mark water across dry country. A line of them across a prairie often follows a creek or river.

The flattened leaf stalks make the leaves flutter, so you can hear a cottonwood before you see it.

Related guides

This guide helps you recognize trees and avoid harmful plants. It does not teach foraging, and nothing here is advice to eat or use a wild plant. Identification from a drawing can be wrong, so check with a regional field guide or a local expert, such as your state forestry or extension service.

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