Carex debilis, also known as white-edge sedge, Rudge's white-edge sedge, and flexuous white-edge sedge, is a species of flowering plant in the sedge family, Cyperaceae. It is native to the eastern North America, where it is found in eastern Canada, the northeastern and midwestern United States, and southward in the Appalachian Mountains.

Carex debilis is a clumping perennial. The variety Carex debilis var. rudgei has smaller perigynia that are broadest near the middle.

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