Soot sedge

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Soot sedge
Soot sedge from Torneträsk, Sweden.

Soot sedge from Torneträsk, Sweden.

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Soot sedge
Scientific name
Carex fuliginosa
Schkuhr

The soot-sedge ( Carex fuliginosa ) is a species of the genus of the sedges ( Carex ) within the sour grass family (Cyperaceae).

description

The soot sedge is a perennial herbaceous plant and reaches heights of 10 to 30 centimeters. It grows tightly clumpy . The blunt, triangular and maximally slightly rough stems are two to three times as long as the leaves. The leaves are 2 to 4 millimeters wide. The basal sheaths are dark brown, not reticulated and are preserved.

The soot sedge is a variegated sedge. There are two to six spikelets that are stalked and oblong-ovate. All or only the lower spikelets are spaced apart. The terminal spikelet bears female flowers at the tip and male flowers at the base . The lateral spikelets are female, have a hair-thin stalk up to 5 centimeters long and are overhanging. The spikelets are up to 25 millimeters long and 6 to 8 millimeters wide. All spikelets are similar in shape and color. The blunt bracts are black-violet and have a white skin edge. The stylus ends in three pits .

With a length of 4 to 6 millimeters, the brown or black and bald fruit is longer and narrower than its bract , slender and has a two-toothed beak that is sawn on the edge.

The number of chromosomes is 2n = 40.

Occurrence

The soot sedge is not only common in Europe; it occurs in the subarctic regions and the subalpine areas of the northern hemisphere. In Europe it is regarded as a submeridional-alpine to temperate-alpine, suboceanic floral element . Its main area of ​​distribution in Central Europe is the Eastern and Southern Alps . For the Swiss Alps there is no reliable information about local sites. The soot sedge is rare in Central Europe , but it forms smaller populations at its locations. In Germany it is limited to the Berchtesgaden Alps.

It grows on stony, lime-poor, trickled alpine lawns or percolated habitats. It thrives on stony, creepy, only moderately alkaline, always lime-poor or lime-free soils . The soot sedge grows in central Europe on rivulets, brook banks and on the damp mats of the Alps . It occurs in the subalpine and alpine altitudes at altitudes between 1700 and 2600 meters.

Taxonomy

The soot sedge ( Carex fuliginosa Schkuhr ) has the synonyms Carex misandra R.Br. , Carex fuliginosa subsp. misandra (R.Br.) Nyman , Carex fuliginosa var. misandra (R.Br.) O. Lang , Carex fuliginosa subsp. pronella Printz , Carex frigida var. fuliginosa (Schkuhr) Kunth .

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 .

Individual evidence

  1. ^ 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 .
  2. ↑ Rafaël Govaerts (ed.): Carex fuliginosa. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 20, 2016.
  3. ↑ a b c 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. 296 .

Web links