Fremont cottonwood

Fremont cottonwood can be a striking green landmark in Utah's dry country. Mature trees have broad crowns, thick furrowed bark, and roughly triangular leaves with coarse rounded teeth. Their long, flattened leaf stalks let the leaves move in the wind. Autumn foliage is usually yellow. Cottonwoods also hybridize, so leaf shape alone is not a complete identification key; compare several leaves and the setting.

Its relationship with water is more specific than simply growing beside a river. The tiny, cotton-bearing seeds are short-lived and need suitable moist, exposed ground for establishment. Receding spring floods can leave fresh sand and silt just when seeds are available. A stand of mature trees may persist while that opportunity for seedlings becomes uncommon. This helps explain why conserving a cottonwood woodland involves the river's flow and floodplain as well as the standing trunks. In Utah, Fremont cottonwood is chiefly a lower-elevation tree, generally below about 6,000 feet.

Cottonwood shade, branches, and streamside cover contribute habitat in landscapes where large broadleaf trees are otherwise scarce. Willows and other moisture-loving plants often grow nearby. Stay on established approaches, leave saplings undisturbed on wet bars, and avoid trampling young trees for a photograph. A line of cottonwoods indicates access to water in the landscape; it does not guarantee a flowing stream, safe drinking water, or public access.

Broad triangular toothed leaves, spreading crown, deeply furrowed mature bark; other cottonwoods and hybrids complicate identification.

Protect seedlings and soft banks; do not use tree presence as a water-safety or access indicator.