Triangular pond rush
| Triangular pond rush | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Triangular pond rush ( Schoenoplectus triqueter ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Schoenoplectus triqueter | ||||||||||||
| Palla |
The triangular pond rush ( Schoenoplectus triqueter ) is a species of the genus pond rushes ( Schoenoplectus ) within the sour grass family (Cyperaceae). It is widespread in Eurasia .
description
The triangular pond rush grows as a perennial herbaceous plant and reaches stature heights of 50 to 120, rarely up to 150 centimeters. It forms relatively long, 2 to 5 mm thick runners . The stem is sharp, triangular, quite soft and light to dark green. Leaf blades are absent, or there are only very short, 3 to 10, rarely up to 15 cm long blades on the uppermost leaf sheaths.
The flowering period extends from June to July. The bracts are up to 7 cm long. The inflorescence is usually a capitate contracted Spirre with one to three elongated Spirrenästen from 3 to 15 spikelets . There are two scars.
The number of chromosomes is 2n = 40, 42 or 44.
Occurrence
The triangular pond rush occurs in Europe (especially in the southern and central parts), in Asia (up to China , Taiwan and India) and in northern and southern Africa. In Europe, their distribution area extends northward to Ireland , England and northern Germany .
The triangular pond rush thrives best on nutrient-rich , temporarily flooded, preferably saline , silty or muddy soils that are warmed above average in summer. It thrives in Central Europe in reed communities near the coast , for example in the estuary of streams and rivers. In inland Central Europe they can be found sporadically in the reed beds of slowly flowing or stagnant waters (Lahn, Main, Upper Rhine, Middle Rhine and at the southern foot of the Alps). Overall, it is rare in Central Europe , but there it occurs mostly in small stocks. It thrives in Phragmition societies.
literature
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
- Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe. 2nd Edition. Volume 5: Swan flowers to duckweed plants. Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X .
- Oskar Sebald, Siegmund Seybold, Georg Philippi, Arno Wörz (eds.): The fern and flowering plants of Baden-Württemberg. Volume 8: Special part (Spermatophyta, subclasses Commelinidae part 2, Arecidae, Liliidae part 2): Juncaceae to Orchidaceae. Eugen Ulmer, Stuttgart 1998, ISBN 3-8001-3359-8 .
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. 161-162 .
- ↑ Rafaël Govaerts (ed.): Schoenoplectus triqueter. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 28, 2016.
Web links
- Triangular pond rush. In: FloraWeb.de.
- Triangular pond rush . 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 .
- Schoenoplectus triqueter (L.) Palla, map for distribution in Switzerland In: Info Flora , the national data and information center for Swiss flora .
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )