Carex chordorrhiza, commonly called creeping sedge or string sedge, is a species of perennial plant in the family Cyperaceae with Holarctic distribution growing in acidic bogs.

Carex chordorrhiza has an unusual growth habit, where prostrate stems produce new shoots the following year.

[1] Using this means of growth, C. chordorrhiza can grow vegetatively by up to 70 centimetres (28 in) per year.

[3] The distribution of Carex chordorrhiza is circumpolar in boreal and subarctic areas.

[4] Within the British Isles, it is restricted to two sites in the Scottish Highlands, at the head of Loch Naver (near Altnaharra, West Sutherland) and in the Insh Marshes (Easterness & Nairns).