Laxmann's cattail
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Laxmann's cattail ( Typha laxmannii ) |
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| Typha laxmannii | ||||||||||||
| Lepech. |
Laxmann's bulrush ( Typha laxmannii ) is a species of plant from the genus bulrush ( Typha ) in the family of the bulrush family (Typhaceae).
description
Laxmann's cattail is a 80–130 (–210) cm high plant with narrow, 2–4 (–7) mm wide leaves. The flower stalk has about 6–7 leaves that only slightly protrude from the tip of the bulb. The female portion of the piston is 3–5 (–13) cm long and only 4 mm in diameter when it opens, but 20–25 mm in diameter at the time of fruit. In contrast to the narrow-leaved cattail, the stigma is not linear, but widened rhombically. The distance between the female and male piston sections is 2-4 cm long. The male piston section is approx. 8-10 cm long and thus almost twice to four times as long as the female. The species blooms between June and August.
The number of chromosomes is 2n = 30.
Name declaration
The plant is named after Erik Laxmann (1737–1796), a Finnish pastor in Siberia who traveled from there mainly to research the country's fauna.
Occurrence
Laxmann's bulrush occurs on river and lake banks, also in brickworks and quarries where water is dammed. The distribution area of the species extends from Japan to Southeast Europe. Otherwise, the plant is also carried away, for example in Germany in the Palatinate, in Baden-Württemberg, in Bavaria, in Saxony and in Saxony-Anhalt. Occasionally it is also an ornamental plant.
literature
- Ute Müller-Doblies, Dietrich Müller-Doblies: Order Typhales . In Gustav Hegi : Illustrated Flora of Central Europe . 3rd edition, Verlag Paul Parey, Berlin and Hamburg, Volume II, Part 1. pp. 275-317, 1977. ISBN 3-489-54020-4
- Christopher David Kentish Cook: Typha . In: Thomas Gaskell Tutin u. a .: Flora Europaea . Volume 5, pp. 275-276, 1980. Cambridge University Press.
- Eckehart J. Jäger u. a .: Excursion flora from Germany . Vascular plants: baseline. 20th edition, Spektrum Akademischer Verlag Heidelberg, 2011. ISBN 978-3-8274-1606-3
Individual evidence
- ^ Tropicos
- ↑ Rafaël Govaerts (ed.): Typha laxmannii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved June 5, 2020.
Web links
- Laxmann's cattail Laxmann's cattail. In: FloraWeb.de.
- Laxmann's cattail . 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 .
- Typha laxmannii Lepech., Map for distribution in Switzerland In: Info Flora , the national data and information center for Swiss flora .
- Distribution in the Netherlands [1] (Dutch)
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )