Juncus tenuis

Delicate rush ( Juncus tenuis )

The Tender rush ( Juncus tenuis ) belongs to the family of the Rushes ( Juncaceae ). Originally from North America native, naturalized neophyte today is first detected since 1824 in Europe.

Distribution and location

The bins plant originates from North America. Since about 1824 it is known in Europe. Today the rush in North, West and Central Europe, is naturalized and is now spreading to New Zealand and Australia.

The Tender bulrush often grows along forest trails and kick in companies. Preference is rather low humus loam or clay soil, which should be base- rich but poor in calcium. Tolerates soil compaction and moderate shade. Lacking in higher uplands with limestone regional basis. After Ellenberg it is a default pointer acid, growing on moderately nitrogen-rich sites and a Verbandscharakterart the Knotgrass Kick companies ( Polygonion avicularis ).

Description

The perennial, overwintering green Hemikryptophyt forms small yellow-green to brown-yellow clumps with 15 to 50 centimeters Height. The round stems grow upright. Flowering stems bear on the basic one to two grassy, rinnige and not very stiff leaves and two to three inflorescence far superior bracts. At the end of the leaf sheaths is 1 to 3 mm are long, whitish ears.

The terminal inflorescence is always up to 8 centimeters long compact Spirre. The partial inflorescences are long stalks. The tepals are 3 to 4 mm all the same length. They are pointed green, clear three annoying and lanceolate. The inner are hautrandig. They surround six stamens and three upright long scars. The capsule fruit is oval to spherical and equipped with short spike tip. It is significantly shorter than the perianth. The seeds are small and pale. They swell in water to frog spawn -like. The heyday of the Tender rush extends from June to September.

Illustration

Ecology

Pollination of flowers carried by the wind ( anemophily ). The diasporas are sticking in the fur or feathers of animals spread ( Epizoochorie ).

15-40 cm high Horst plant. Erstausbreitung in Europe because pittosporum along the unpaved paths through step propagation and by adhering to cartwheels earth. Wets one ripe fruit capsules with water, take a few minutes the seeds of frog spawn -like. Culture companion.