Beaked flax leaf

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Beaked flax leaf
Thesium rostratum (1) .JPG

Beaked flax leaf ( Thesium rostratum )

Systematics
Eudicotyledons
Nuclear eudicotyledons
Order : Sandalwoods (Santalales)
Family : Sandalwood family (Santalaceae)
Genre : Flax leaf ( thesium )
Type : Beaked flax leaf
Scientific name
Thesium rostratum
Mert. & WDJKoch

The beaked flax leaf ( Thesium rostratum ), also called beak-flax flax or beak-fruited flax leaf , is a species of linseed leaf ( Thesium ) within the sandalwood family (Santalaceae).

description

The beaked flax leaf is a deciduous, perennial herbaceous plant that reaches heights of 20 to 30 centimeters. As a survival organ it has a woody rhizome from which it, "loosely clumpy", always forms several or many stems , but it has no runners . The ascending to upright stems are unbranched. The stem leaves are linear and single-nerved.

The flowering period extends from May to July. At the tip of the racemose inflorescence there is a flowerless "tuft of leaves". There is only one bract below the flowers . The hermaphrodite flowers are radially symmetrical and five-fold. The perianth is rolled and the fruit time to the middle then two to three times as long as the almost-seated, almost spherical, berry-like juicy, citron fruit.

The number of chromosomes is 2n = 26.

ecology

The beaked flax leaf is a geophyte . The beaked flax leaf occurs at its locations mostly in smaller, few individuals, loose and inconspicuous stands.

The beaked flax leaf is a semi-parasite (hemiparasite) that tap the roots of neighboring plant species through haustoria .

Occurrence

The main distribution of the Schnäbelte Leinblatt is in Central Europe , especially in the eastern Alpine and foothills of the Alps. The distribution area of ​​this species extends to the west into eastern Switzerland (for example in the area around Zurich), north to the Danube near Regensburg and to the Czech Republic, east to Carinthia and south to South Tyrol and the southern foot of the Alps.

The beaked flax leaf thrives best in very loose, lime-rich soils . It occurs in the colline to montane altitudes of the Alps or in the low mountain ranges. The Schnäbelte Leinblatt rarely rises to an altitude of 1500 meters. It inhabits stony and at least at times dry and sparse pine forests as well as alpine dwarf shrub heaths and mountain pine bushes; where these biotopes occur secondarily in lower elevations, this species can also be found, for example, on moraine gravel . The Schnäbelte Leinblatt also stands on the gravel banks of the rivers at the foot of the Alps (e.g. from the Lech and Isar ), in some cases even as far as their confluence with the Danube .

The plant is a character species of the Erico-Pinion association and occurs particularly in the Erico-Pinetum or the Cytiso-Pinetum.

literature

  • Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg . tape 4 : Special part (Spermatophyta, subclass Rosidae): Haloragaceae to Apiaceae . Eugen Ulmer, Stuttgart (Hohenheim) 1992, ISBN 3-8001-3315-6 , pp. 71-73 .
  • Siegmund Seybold : The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants . Founded by Otto Schmeil , Jost Fitschen . 95th completely revised and expanded edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 , p. 567 .
  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Published by the Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). 2nd corrected and enlarged edition. Eugen Ulmer, Stuttgart (Hohenheim) 2007, ISBN 978-3-8001-4990-2 , pp. 279 .
  • Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe . 2nd Edition. tape 3 : Evening primrose plants to reddish plants . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X , p. 145 .
  • Beaked flax leaf. In: FloraWeb.de. (Sections Description and Ecology)
  • Manfred A. Fischer, Wolfgang Adler, Karl Oswald: Excursion flora for Austria, Liechtenstein and South Tyrol . 2nd, improved and enlarged edition. Province of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2005, ISBN 3-85474-140-5 , p. 386 .

Individual evidence

  1. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 324.

Web links

Commons : Schnäbeltes Leinblatt ( Thesium rostratum )  - Collection of images, videos and audio files