Carex vesicaria

Bladder sedge ( Carex vesicaria )

The bladder sedge ( Carex vesicaria ), also known as Narrow- bladder sedge, is a plant belonging to the family of the Sedge family ( Cyperaceae ). Its flowers are wind- pollinated ( anemophily ), their buoyant fruits are spread through the water ( Hydrochorie ). However, it reproduces vegetatively through its rhizomes or their underground runners.

Occurrence

The bladder sedge can be found year-round in the siltation areas of standing water and slow rivers or streams. It flowers in June and is nutrient- demanding, and shows after Ellenberg moderately strong nitrogen content of soil. She comes across Germany to the alpine areas and the Central German dry areas frequently. It is also common to the temperate northern hemisphere.

Identifying

The bladder sedge is a partially evergreen, perennial, herbaceous plant that reaches the plant height of about 30 to 100 cm. It is everywhere bare and long forms from underground runners. Its stalk is down sharply triangular, up to the edges in addition usually rough. The double-folded, grass-green leaves are about 4 to 8 mm wide and colored sharply keeled. Your bottom is often provided little darker, with a slight blue-green tint. The top, however, is rather fresh green shimmering. The basal leaf sheaths are brown, some purple over again and now the tearing clearly netzfaserig. The ligule is an acute, delicate, membranous and translucent. Sometimes these are provided with a fine red or brownish nerve network.

The bracts of the female heads of grain are often short scheidig. The inflorescence is two to four male heads of grain that are at the top, and one to three female inflorescences which are dominated by the male. The female ears are four to ten times as long as wide and are located only in the upper half of stem, the lower ones are often short-stalked. The bright yellow -green colored hoses are about 8 mm long, strongly inflated, conical and erect appearing wrong. They narrowing gradually into the beak, which is provided with two spreading beak teeth. The tube encloses always three scars.