Buxbaum's sedge

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Buxbaum's sedge
Carex buxbaumii sl8.jpg

Buxbaum's sedge ( Carex buxbaumii )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Buxbaum's sedge
Scientific name
Carex buxbaumii
Election b.

Buxbaum's sedge ( Carex buxbaumii ) is a species of sedge ( Carex ) within the sourgrass family (Cyperaceae). It is common in the northern hemisphere .

description

Illustration from storm
The lower leaf sheaths tear open fibrous.
Lateral ear
Terminal ears
Cover sheet and tube

Buxbaum's sedge grows as a perennial herbaceous plant and reaches heights of 20 to 70 centimeters. It forms long runners and grows loose grass. The stems stand upright and are sharp triangular. The leaves are 2 to 4 millimeters wide, rough, long and pointed and shorter than the stem. Their color is gray-green, the edges are somewhat curled. The basal sheaths are black-red and finely reticulated.

Buxbaum's sedge is one of the sedge of different ages. The terminal spikelet is club-shaped, 10 to 25 millimeters long and 5 to 10 millimeters wide. There are female flowers at the top and male flowers at the base , often many male. The two to three lateral spikelets are female. All spikelets are the same in shape and color and are spaced apart. The lowest bract is longer than the inflorescence. The bracts are dark reddish-brown, pointed to awny. The awning tip towers above the fruit.

The fruit is 3 to 4 millimeters long, indistinctly veined, almost triangular, gray-green in color and covered with conspicuous papillae . The fruit is abruptly narrowed into the very short two-toothed beak. The stamp has three scars .

The number of chromosomes is 2n = 74 or approx. 100.

Occurrence

Buxbaum's sedge is a meridional-montane to boreal, sub-oceanic, probably a Eurasian-continental floral element . It is common in the temperate zones of the northern hemisphere in Europe, Western Siberia, Greenland and North America. The European distribution area of Buxbaum's sedge stretches from Central and Eastern Europe east to the southern Urals . In Europe to the north it occurs only in southern Scandinavia , in western and southern Europe it is almost completely absent (apart from a few occurrences in France); to the southeast it occurs only in Romania . Occurrences are known in northeastern Anatolia and in the Caucasus region. It is very rare in Central Europe and usually forms small populations. In the mountains it hardly rises to the tree line.

It grows in bog meadows, flat bogs, in silting ponds and wet pipe grass meadows. It is an order character of the pipe grass meadows (Molinietalia caeruleae), but also occurs in societies of the Magnocaricion association. Buxbaum's sedge thrives on waterlogged, at times flooded, not too base-poor and mostly calcareous clay soils with added peat .

Taxonomy

Carex buxbaumii was first published in 1803 by Göran Wahlenberg . The specific epithet buxbaumii honors the German botanist Johann Christian Buxbaum .

supporting documents

  • 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 (area).
  • Siegmund Seybold (Ed.): Schmeil-Fitschen interactive . CD-ROM, version 1.1. Quelle & Meyer, Wiebelsheim 2002, ISBN 3-494-01327-6 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi, Arno Wörz (eds.): The fern and flowering plants of Baden-Württemberg . tape 8 : Special part (Spermatophyta, subclasses Commelinidae part 2, Arecidae, Liliidae part 2): Juncaceae to Orchidaceae . Eugen Ulmer, Stuttgart (Hohenheim) 1998, ISBN 3-8001-3359-8 .
  • 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. 272 .

Individual evidence

  1. ↑ 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.  183 .
  2. ↑ Rafaël Govaerts (ed.): Carex buxbaumii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 18, 2016.

Web links

Commons : Buxbaums Sedge ( Carex buxbaumii )  - album with pictures, videos and audio files