Stiff barbara herb

from Wikipedia, the free encyclopedia
Stiff barbara herb
Barbarea stricta sl3.jpg

Stiff barbara herb ( Barbarea stricta )

Systematics
Eurosiden II
Order : Cruciferous (Brassicales)
Family : Cruciferous vegetables (Brassicaceae)
Tribe : Cardamineae
Genre : Barbara Herbs ( Barbarea )
Type : Stiff barbara herb
Scientific name
Barbarea stricta
Andrz.

The stiff barbara herb ( Barbarea stricta ), also known as stiff winter cress , is a species of the genus Barbara herbs ( Barbarea ) in the cruciferous family (Brassicaceae).

description

Illustration from storm

The stiff Barbara herb is a biennial herbaceous plant and reaches heights of 50 to 100 centimeters. The basal leaves usually have one to two, rarely up to four pairs of side lobes and an elongated, never heart-shaped end portion that is longer than the rest of the leaf. The upper stem leaves are undivided, lobed and toothed.

The flowering period extends from April to June. The hermaphrodite flowers are fourfold. The tip of the sepals and the buds have trichomes 0.3 to 0.5 millimeters long . The light yellow petals are 3.5 to 6 millimeters long and only slightly longer than the calyx.

The pods stand upright on thick stalks and are pressed against the stem axis. The fruit pen is 0.5 to 1 millimeter long.

The species has chromosome number 2n = 16.

Occurrence

The stiff barbara herb is a European-West Asian floral element . It grows mainly in the area of ​​the river valleys from the Yenisei in Siberia to the Rhine to the west; it is also found in England and Ireland .

It occurs very rarely in Germany in the lowlands west of the Elbe, on the Middle Rhine, on the lower and middle Main , on the lower Neckar and on the Isar , Lech and the Danube (as far as Passau); it is rarely found in the Austrian Danube region; It occurs scattered in Schleswig-Holstein and between the Oder and Elbe .

In Central Europe, it mainly inhabits banks of ditches, creeks and rivers and also goes into the bank bushes here, more rarely it colonizes wet, nitrogenous wasteland or wet roads. In Central Europe it is a character species of the Chaerophylletum bulbosi from the association Aegopodion podagrariae, but also occurs in societies of the association Agropyro-Rumicion.

The Stiff Barbarakraut thrives best on wet, at least partially flooded, nutrient - and lime - rich , loamy soils .

Taxonomy

The first publication of Barbarea stricta was done by Antoni Lukianovich Andrzejowski . The specific epithet stricta means stiff.

literature

  • Otto Schmeil , Jost Fitschen (greeting), Siegmund Seybold: The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants. 95th completely revised u. exp. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
  • Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas. 8th edition, Ulmer-Verlag, 2001, ISBN 3-8001-3131-5 .
  • Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg. Volume 2: Special part (Spermatophyta, subclass Dilleniidae): Hypericaceae to Primulaceae. Eugen Ulmer, Stuttgart 1990, ISBN 3-8001-3312-1 .
  • Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe. 2nd Edition. Volumes 1–5, Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X .

Individual evidence

  1. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Stuttgart, Verlag Eugen Ulmer, 2001. Page 464. ISBN 3-8001-3131-5

Web links

Commons : Stiff Barbara Herb ( Barbarea stricta )  - Collection of images, videos and audio files