Juncus gerardii
Bodden - rush ( Juncus gerardii )
The Bodden - rush ( Juncus gerardii ), also Bottenbinse or salt - rush called, belongs to the family of the Rushes ( Juncaceae ). Unlike many other species of the genus Juncus Bodden bulrush is fed really well due to the compact and lightweight fleshy substance of the stems and leaves both fresh and dry from cattle. It is a characteristic plant of the salt marshes of the coast.
Subspecies and their distribution
According to Kirschner, J. et al. (2002) distinguish the following sub- types:
- Juncus gerardii subsp. atrofuscus
- Juncus gerardii subsp. gerardii
- Juncus gerardii subsp. montanus
Juncus gerardii subsp. gerardii is widespread ( up in the north of the USA Canada ) and North Africa, almost everywhere in Europe, also in West and Central Asia, North America. While Juncus gerardii subsp. atrofuscus limited to northern and north-eastern Europe, Juncus gerardii comes subsp. montanus exclusively in Spain and Morocco.
Location and socialization
The Bodden bulrush grows on moist, salt- affected sites, such as the salt marshes of the coast or in salt pans and other locations salt of the inland. On the coasts of the Bodden - rush is the Kennart the plant community ( association ) of the Bottenbinsenrasen ( Juncetum gerardii ( Warming 1906) You Rietz 1923). Here it grows together with salt marsh red fescue ( Festuca salina ), beach thrift ( Armeria maritima ), English scurvy grass ( Cochlearia anglica ) and the beach wormwood (Artemisia maritima ). The Company will only seldom, if necessary, flooded by extreme floods. In the interior it is locally the Kennart Association of Platt rushes Society ( Juncetum compressi Br.-Bl. 1918 ex Libb. , 1932 ).
Description
The Bodden bulrush is an overwintering green, perennial, herbaceous plant that reaches the plant height 10-30 centimeters. Over short spur it forms loose bright green to olive green lawn. But it is rarely forming stands. The leafy stems grow upright. They are rigid and almost cylindrical. The leaves are pressed together and met rinnig and with a captive market.
The inflorescence is a loose, rich flowering Spirre initially with upright branches. The bottom liner sheet is shorter than the Spirre. The six tepals are pointed, black brown and wear a lighter midrib and a membranous margin. You are as long as the fruit is about. The flowers continue to have six short stamens a pen with three stigmas, which are the flowering period as long as the ovary. The capsule is elliptical and dark brown and only slightly longer than the tepals. The sticky seeds are about 0.6 mm long. The rush blooms in the period between June and August.
Ecology
The proliferation of diasporas is done by adhering to the fur or feathers of animals ( Epizoochorie ). The pollination of flowers takes place on the wind ( anemophily ), as in all species of the genus Juncus. The bulrush stands as a half - light to full light plant no shading. Your environmental focus, the plant on moist to periodically flooded, calcareous and saline pure sand or Salztonböden.