Juncus articulatus
Members - rush ( Juncus articulatus )
The links - rush ( Juncus articulatus ) belongs to the family of the Rushes ( Juncaceae ). It owes its name to the quergekammerten Mark inside their leaves.
Description
The perennial, overwintering green Hemikryptophyt reaches stature heights between 15 and 70 centimeters. With its creeping rhizome and short runners it forms loose turf. The characteristic bins shaped, pointed leaves are rounded to compressed in cross section. They are hollow, chambered by transverse walls and filled with a spidery marks. The ears of the leaf sheaths are long and membranous. The stems of ordinary members bulrush are usually arched ascending order, these are rigidly upright in the beach gates bulrush.
The inflorescence is a about 10 inches tall, erect Spirre with obliquely upright branches and a hemispherical head. These are about 5 millimeters wide. In the ordinary members bulrush they consist of five to thirty, at the beach - members - rush from four to six individual flowers. The tepals are reddish brown, equally long and lanceolate. They are between 2 and maximum of 4 millimeters long. The interiors are something hautrandig. The pointed- ovoid capsule is shiny black and brown and as long or longer than the petals. They contain a few lemon-shaped seeds.
The heyday of the limbs bulrush extends from July to October.
Spirre
Fruit stand in the autumn
Ecology
The flowers are pollinated by the wind. The distribution of diaspore is also carried by the wind or by adhering to the fur or feathers of animals. As half - light to full light plant, the plant can not tolerate shade. Your ecological focus is on durable well soaked, air-and nitrogen-poor soils. The Mark of the leaves is used as a ventilation tissue ( aerenchyma ), so that the plant is supplied in air-lean ground with sufficient oxygen.
Distribution and location
The bulrush is found throughout Europe, Asia, North America and North Africa. Furthermore, she was introduced to New Zealand and Australia. Your altitudinal distribution ranges up to 2000 meters. The marsh plant ( Helophyt ) grows in swamps, marshes, wetlands and water margins.
System
The links bulrush was first published in 1753 articulatus by Carolus Linnaeus in Species Plantarum as Juncus. The Latin " articulatus, - a,-um " means " divided ".
There are two subspecies by K. Kiffe in Germany: the Ordinary members - rush ( Juncus articulatus subsp articulatus. ) And the beach - members - rush ( Juncus articulatus subsp litoralis ( Patze, EHF Meyer & Elkan ) Lemke nom inval. .. ). They are different especially in the shape of the inflorescence and the length of perigone. The latter subspecies is but of Kirschner et al. and other non- recognized. It, however, a further subspecies Juncus articulatus subsp. limosus ( Vorosch. ) Vorosch. called, which represents the kind in East Asia.