Rumex thyrsiflorus

Straußblütiger sorrel ( Rumex thyrsiflorus )

The Straußblütige sorrel ( Rumex thyrsiflorus ), also referred to as spikes sorrel, is in Central Europe only partially spreading occurring member of the family of the buckwheat family ( Polygonaceae ).

Description

The Straußblütige Sorrel is a perennial, herbaceous plant that reaches the stature heights of up to 120 cm. It is dioecious getrenntgeschlechtig ( dioecious ).

The very differently shaped leaves are usually linear to narrowly lanceolate in shape and have an arrow - shaped leaf base to spit. Sometimes the individual spit corners are not split. The leaves are about four to 14 times as long as wide. The basal leaves are long-petiolate, while the upper stem leaves are amplexicaul. The transparent sheath ( Ochrea ) the stipules are slashed.

The richly branched branches of the inflorescence form dense racemes in fruit condition.

The inner membranous tip of the perianth ( Valven ) are kidney-shaped to roundish shaped, about 2.5 to 3.5 mm long, often wider than long. You have at least a small, flattened, recurved callus. The dark brown nuts reach a size of about 1.8 to 2.2 mm.

The Straußblütige sorrel blooms mainly in the months of July and August.

Distribution and habitat requirements

R. thyrsiflorus comes from Scandinavia to eastern Central Europe and the Balkans to Siberia. In Central Europe the species reaches its western boundary, however, is along the main roads a marked tendency to spread.

In Germany the Straußblütige Sorrel comes in East Germany before disseminated. In addition, he is particularly common along the great rivers ( Stromtalpflanze ), and along major streets and railway installations.

In Austria and Switzerland, you will find the type also as neophytes mainly scattered to fairly common along the main roads before.

R. thyrsiflorus grows along roadsides, railway embankments and other waste places. He prefers more or less dry, often stony or sandy soils.