Plains Cottonwood

About Plains Cottonwood in Alberta

Plains Cottonwood is a native southern Alberta floodplain tree and one of the defining big trees of prairie river corridors. It is a fast-growing pioneer of moist fertile bottomlands, river edges, and fresh alluvium, with regeneration tied to flooding, full sun, bare moist substrate, and low competition. For ARA, old plains cottonwoods, remnant groves, and riparian stands along altered rivers are highly significant because they preserve shade, wildlife structure, floodplain history, and the visible character of Alberta's southern river systems.

Identification: Leaves are broad and triangular, with long tapering tips and flattened petioles that make them flutter strongly in wind. Leaf form can vary where hybridization occurs, so trees in southern Alberta should be compared carefully when leaves do not fit the classic triangular pattern.

Alberta range and habitat: Plains cottonwood is native in southern Alberta, especially along prairie river systems, floodplains, bottomlands, and major watercourses.