Carex disticha

Two-line sedge ( Carex disticha )

The two-line sedge ( Carex disticha ) belongs to the family of the Sedge family ( Cyperaceae ). Through the rain by both pollination ( anemophily ) and seed dispersal ( Anemochorie ) of this species. However, it reproduces vegetatively through its rhizomes and their underground runners.

Description

The two-line sedge is a deciduous, perennial, herbaceous plant, reaching the heights of growth of about 20 to 70 cm. It forms characteristic long streamers. The diameter of the rhizomes is only 2 to 3 mm. Both the above rough stems and the leaves straightened up. However, the time of fruit ripening of the stems can easily hang. The front of the leaf sheath is green annoying. A green annoying ligule with vaginal skin is so available. The leaves are 2 to 4 mm wide.

The plant forms a 3-7 cm long inflorescence, which is staffed by 10 to 25 spikelets. The upper and lower spikelets are usually purely female and male only in the middle. Therefore, the ears stand acts constricted to fruit ripening in the middle. However, the gender distribution in the inflorescence may vary. Mature spikelets are colored brown. The hoses are indistinct narrow winged, about 5 mm long and 2 mm wide and enclose two scars.

Occurrence

The sweet base nutrient demanding two-line sedge flowers in May and June, is a part of large sedge vineyards and is mainly on the banks of silted waters and wetlands extensively used in Germany is relatively common to find. Only in the mountains and in the Central German dry area they rarely occurs. It is further in Europe and West Asia spread. In Eastern America it was introduced as a neophyte by man.

Swell

• Werner Rothmaler: Excursion Flora of Germany. Vascular plants: Critical band. Fischer, Jena, 1994, ISBN 3-334-60830-1
• E. Foerster: sedges, rushes, cornices and other grasses glow of grassland - A key to determining the flowerless state ( manuscript Kleve - Kellen March 1982)