Vaginal sedge

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Vaginal sedge
Carex vaginata3.JPG

Vaginal sedge ( Carex vaginata )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Vaginal sedge
Scientific name
Carex vaginata
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The vaginal sedge ( Carex vaginata ) is a species of the genus Seggen ( Carex ) within the sour grass family (Cyperaceae). It is common in the northern hemisphere .

description

inflorescence

The vaginal sedge is a perennial herbaceous plant that reaches heights of 10 to 30, sometimes up to 60 centimeters. It forms long runners . The upright stems are triangular and smooth. The grass-green, bare, simple leaves are 2 to 6 millimeters wide, double-folded, stiff and much shorter than the inflorescence .

The vaginal sedge is a variegated sedge. There is a terminal male spikelet , which is 1 to 1.5 inches long and stalked long, is bent down to fruit ripeness. There are two female spikelets 1 to 2 inches long, loosely flowered, and remain erect when the fruit is ripe. The foliage-like bracts are up to 2.5 centimeters long, inflated and stem-encompassing sheaths and do not protrude beyond their spikelets. The bracts are rust-red, have a green central vein and are the same length as the fruit. The stylus has three scars .

The bald, light brown fruit is 3 to 4 millimeters long, spherical to egg-shaped, veiny and has an edged beak.

The number of chromosomes is 2n = 32.

Occurrence

The vaginal sedge is circumpolar and is a temperate-montane to boreal continental flora element . Their main distribution area is in Northern Europe, North America and Siberia . In Central Europe there are individual locations on the Brocken in the Harz Mountains , as well as north of Rostock, in the Czech Republic and Slovakia , the Southern Alps ( Savoy ), in Graubünden , in the Engadine and in the Bernese Oberland . The Scheiden sedge rises in Central Europe to altitudes of 2000 meters. Overall, it is rare in Central Europe.

The vaginal sedge thrives best on moist, well-drained and well-aerated soils . In Central Europe it populates fine gravel, mud-permeated subsoil in the area of ​​glacier runoffs as well as gappy mats and meadows on loose soil. In Germany, it grows on moist, grassy slopes, in dwarf shrub heaths and grasslands as well as in intermediate limestone bogs of the subalpine to alpine altitude . It is a character species of the order Tofieldietalia, but also occurs in the Caricetum maritimae of the association Caricion bicolori-atrofuscae.

The vaginal sedge is extremely rare in Germany and only occurs here in Saxony-Anhalt .

Systematics

One can differentiate between the following varieties:

  • Carex vaginata var. Petersii (Camey ex F.Schmidt.) Akiyama : It occurs from Siberia to northern and central Japan.
  • Carex vaginata var. Vaginata : It occurs from Europe to Siberia, from Canada to the northern United States and in Greenland.

literature

  • Siegmund Seybold (Ed.): Schmeil-Fitschen interactive . CD-ROM, version 1.1. Quelle & Meyer, Wiebelsheim 2002, ISBN 3-494-01327-6 .
  • 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 .

Individual evidence

  1. ↑ a b vaginal sedge. In: FloraWeb.de.
  2. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 188 .
  3. ^ A b c Rudolf Schubert , Klaus Werner, Hermann Meusel (eds.): Excursion flora for the areas of the GDR and the FRG . Founded by Werner Rothmaler. 13th edition. tape 2 : vascular plants . People and knowledge, Berlin 1987, ISBN 3-06-012539-2 .
  4. ↑ a b c d Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe . 2nd Edition. tape 5 : Swan flowers to duckweed plants . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X , p. 290 .
  5. ↑ a b c Rafaël Govaerts (Ed.): Carex vaginata. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 25, 2016.

Web links