Chondrilla juncea

Big Knorpellattich ( Chondrilla juncea )

The Great Knorpellattich ( Chondrilla juncea ), also called rushes Knorpellattich, a native in Central Europe plant from the sunflower family is (Asteraceae). The Style epithet juncea is derived from the word for bulrush and refers to the bins -like habit of the Art

Features

The Great Knorpellattich is a Hemikryptophyt and reaches stature heights of up to one meter. Its roots go deep and two meters. The plant offers milk juice. The stems are blue-green, their base is hairy projecting weißborstig. The whole plant is sparrig - rutig and branches already on the basal leaves spreading. The leaves arise in strong sunlight perpendicular to the sun (compass plant). The basal leaves are like the stems frosted blue-green. Their form is schrotsägeförmig, the middle vein is bristly hairy on the underside of leaves. In its heyday, the basal leaves are dried up.

The flower heads in loose ears of corn or virgate branches. The heads are composed only of ray florets. Pollination is by insects. Propagation is by agamospermy. The flowers are open in the morning. Flowering time is July to September.

The achenes are ribbed. The top is bumpy, beaked long. The pappus is multiseriate and therefore lifted stalk -like. He has simple or shortly toothed rays. At the base of the pappus sits a scaly collar.

Dissemination and locations

The Great Knorpellattich is native to Central Europe. In Germany it is found mainly in the northeast German lowlands, also scattered on the Upper Rhine and the Palatinate. In several German states he is threatened or endangered, threatened in North Rhine -Westphalia and Schleswig -Holstein extinction. In Austria it is absent in Vorarlberg, Tyrol and Salzburg; in the Pannonian region he is absent-minded, otherwise rare.

The species grows on dry slopes, on river gravel on dunes, waste places and field margins. It prefers rather dry, sometimes calcareous and deep soils. They particularly like growing on loess. She is a pioneer Unprocessed. It rises only to the submontane altitudinal zone, about 700 m.

The Great Knorpellattich is phytosociological a Assoziationscharakterart of Diplotaxio tenuifoliae Agropyretum - repentis, but is generally found in Festuco - Brometea, Sedo Scleranthetea and Dauco - Melilotion.

Documents

• Siegmund Seybold (ed.): Schmeil Fitschen - interactive ( CD -Rom ), Quelle & Meyer, Wiebelsheim 2001/2002, ISBN 3-494-01327-6