Riesel Sedge
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Riesel-sedge ( Carex magellanica subsp. Irrigua ) |
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| Carex magellanica subsp. irrigua | ||||||||||||
| ( Wahlenb. ) Hiitonen |
The Riesel Sedge or Alpine Mud Sedge ( Carex magellanica subsp. Irrigua (Wahlenb.) Hiitonen , Syn .: Carex paupercula Michx. ) Belongs to the genus Sedges ( Carex ) within the sour grass family (Cyperaceae).
description
Vegetative characteristics
The Riesel-Sedge is a perennial herbaceous plant that reaches heights of 10 to 30, sometimes up to 40 centimeters. It forms runners and grows in small, loose clumps . The dark green leaves are flat in cross section and around 4 mm wide.
Generative characteristics
The Riesel Sedge is a variegated sedge. There is a male, stalked and two to four separated, long-stalked and overhanging female spikelets . These become up to 1 cm long. The lowest bract is at least as long as the inflorescence. The elliptical, lenticularly compressed tubes are only slightly annoying and indistinctly triangular in cross-section. The single flowers are three-colored .
The species chromosome number is 2n = 58 or 60.
Occurrence and subspecies
There are two subspecies:
- Carex magellanica subsp. irrigua (Wahlenb.) Hiitonen
- Carex magellanica subsp. magellanica
Carex magellanica is in southern South America in Argentina and Chile and on the Falkland Islands by the subspecies Carex magellanica subsp. magellanica represented. In the northern hemisphere it occurs in the subspecies Carex magellanica subsp. irrigua circumpolar before. Here it is distributed submeridional-subalpine to arctic.
In Central Europe, the Riesel-Sedge almost exclusively inhabits high alpine bogs , especially at altitudes between 1000 and 2000 meters. In the Allgäu Alps in Vorarlberg near the Kalbelesee on the Hochtannberg it rises up to 1660 m above sea level. Outside the Alps , it occurs in Central Europe only in the Bavarian Forest and in the lime-free low mountain ranges of the Czech Republic and Slovenia ; but it is also absent here in large areas. Overall, it is very rare in Central Europe .
Carex magellanica subsp. irrigua grows in mesotrophic, lime-poor intermediate bogs and bog forests. It is a territorial species of the subalpine Caricetum fuscae, but also occurs in societies of the Rhynchosporion association. The Riesel Sedge grows on lime-free , acidic, peaty soils that should be wet and cool.
literature
- Rafael Govaerts, DA Simpson: World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew 2007. Kew Database .
- 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
- ↑ 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 .
- ↑ Rafaël Govaerts (Ed.): Carex paupercula. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 23, 2016.
- ↑ 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 .
- ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , p. 271.
- ^ Rudolf Schubert , Klaus Werner, Hermann Meusel (eds.): Exkursionsflora 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 .
Web links
- Carex paupercula Michx., Riesel Sedge. In: FloraWeb.de.
- Riesel Sedge . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
- Carex paupercula Michx. In: Info Flora , the national data and information center for Swiss flora .
- Distribution in the northern hemisphere from: Eric Hultén, Magnus Fries: Atlas of North European vascular plants. 1986, ISBN 3-87429-263-0 at Den virtuella floran. (swed.)
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
- Carex magellanica (Tall Bog-sedge) - data sheet from the Online Atlas of the British and Irish flora .
- Carex magellanica Lam. - Data sheet at University of Michigan Herbarium
- Carex magellanica Lam. ssp. irrigua (Wahlenb.) Hiitonen synonym: Carex paupercula Michx. - poor sedge full text PDF.
further reading
- W. Dietrich, K. Rehnelt: Note on the eco-sociology of Carex magellanica Lam. subsp. irrigua (Wahlenb.) Hiitonen in the Alps. In: Reports of the Bavarian Botanical Society. Volume 49, 1978., pp. 31-33 (PDF file).