Girish Mahajan

Carex chordorrhiza

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Kingdom  Plantae
Family  Cyperaceae
Scientific name  Carex chordorrhiza
Rank  Species
Order  Poales
Genus  Carex
Higher classification  Sedges
Carex chordorrhiza Carex chordorrhiza roperoot sedge Go Botany
Section  Carex sect. Chordorrhizae (Heuffel) Meinshausen
Similar  Sedges, Northern bog sedge, Carex limosa, Carex pauciflora, Carex diandra

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.

Contents

Carex chordorrhiza String Sedge Carex chordorrhiza Biopix photoimage 95002

Growth form and classification

Carex chordorrhiza Fadenwurzelige Segge Wikipedia

Carex chordorrhiza has an unusual growth habit, where prostrate stems produce new shoots the following year. Using this means of growth, C. chordorrhiza can grow vegetatively by up to 70 centimetres (28 in) per year. This habit is considered so distinct from all other Carex species that C. chordorrhiza is placed in its own section, Carex sect. Chordorrhizae, although similar habits are seen in other species such as Carex limosa.

Description

Carex chordorrhiza String Sedge Carex chordorrhiza Biopix photoimage 94989

The culms of C. chordorrhiza are 5–32 cm (2–13 in) long, and are initially erect. As they mature, the stems become prostrate and can reach a length of 120 cm (47 in). The inflorescences are 5–16 mm (0.20–0.63 in) long and 4–12 mm (0.16–0.47 in) wide.

Distribution

Carex chordorrhiza Harmaja Carex chordorrhiza

The distribution of Carex chordorrhiza is circumpolar in boreal and subarctic areas. It is found in Iceland, Scandinavia, northern Germany, Poland, northern Russia, and in North America from Alaska to Greenland, and occurs more patchily as far south as Indiana and the Pyrenees.

Carex chordorrhiza httpsuploadwikimediaorgwikipediacommonsthu

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).

Carex chordorrhiza Classification Arctic Flora of Canada and Alaska

References

Carex chordorrhiza Wikipedia


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