Medium water hose
| Medium water hose | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Middle water hose ( Utricularia intermedia ), illustration |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Utricularia intermedia | ||||||||||||
| Hayne |
The average water hose ( Utricularia intermedia ) is a plant from the genus of the water hoses ( Utricularia ) within the family of lentibulariaceae (Lentibulariaceae).
features
The middle water hose is a deciduous, rootless, submerged aquatic plant that reaches heights of 10 to 20 centimeters.
The end tips of the water leaves are blunt in front. Its tip is attached and on the edge there are 4 to 12 eyelash teeth barely protruding from the leaf margin on each side. There are never any trapping bubbles on the water leaves.
The flowering period is between July and August. The crown is lemon yellow. The spur is 7 to 12 millimeters long, walnut and thus about as long as the lower lip.
The number of chromosomes is 2n = 44.
Occurrence
The middle water hose is chalky and grows in Germany in oligo- to moderately eutrophic waters such as peat cuttings, bog gullies and ponds, and ditches. In Central Europe it is a character species of the Utricularion association. Its distribution area includes the temperate zones of the northern hemisphere. The species occurs scattered in southern Bavaria and rarely in central and northern Bavaria, south-east Baden-Württemberg, north-east Saxony, east Brandenburg, south-east and north-west Mecklenburg-Western Pomerania and in Lower Saxony near Meißendorf. This species has become extinct in Hesse, Schleswig-Holstein and the south of Rhineland-Palatinate.
literature
- Eckehart J. Jäger, Klaus Werner (Ed.): Excursion flora from Germany . Founded by Werner Rothmaler. 10th edited edition. tape 4 : Vascular Plants: Critical Volume . Elsevier, Spektrum Akademischer Verlag, Munich / Heidelberg 2005, ISBN 3-8274-1496-2 .
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. 870 .
- ↑ Rafaël Govaerts (Ed.): Utricularia intermedia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 24, 2020.
Web links
- Medium water hose. In: FloraWeb.de.
- Medium water hose . 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 .
- Utricularia intermedia Hayne In: Info Flora , the national data and information center for Swiss flora . Retrieved March 27, 2016.
- Thomas Meyer: Water hose data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )