Small water hose

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Small water hose
Uricularia minor.jpeg

Small water hose ( Utricularia minor )

Systematics
Asterids
Euasterids I
Order : Mint family (Lamiales)
Family : Water hose family (Lentibulariaceae)
Genre : Water hoses ( Utricularia )
Type : Small water hose
Scientific name
Utricularia minor
L.

The Small water hose ( Utricularia minor ) is a plant from the genus of the water hoses ( Utricularia ) within the family of lentibulariaceae (Lentibulariaceae). This carnivorous plant species (carnivore) lives submerged in nutrient-poor, boggy waters.

features

The small water hose is a deciduous, rootless, submerged aquatic plant that reaches heights of 4 to 15 centimeters. In addition to green diving sprouts, there are usually very delicate, pale mud sprouts with which the plant can be anchored. The leaves have two to ten trapping bladders on the whole-edged or one-toothed tips. The leaf lobes are usually 7 to 22 (extreme: 2 to 37) on the up to two centimeters wide leaves. The end lobes have no bristly cilantro; there is at most one end bristle.

The mostly 5 to 15 centimeter long grapes consist of 2 to 5 (6) pale yellow flowers that are 6 to 9 millimeters long and rise above the water surface between June and August. Your spur is about as long as it is wide and frustoconical. The downwardly curved, circular lower lip is elongated and 5 to 8 millimeters wide. The palate of the lower lip is flat and does not completely close the throat.

The winter buds are bare.

The flowering period is June to August.

The number of chromosomes is 2n = 36 or 44.

Small water hose ( Utricularia minor )

Occurrence

The small water hose grows in oligo- to mesotrophic waters such as peat cuttings, pond bays, bog gorges and ponds. In Central Europe it is a character species of the Scorpidio-Utricularietum minoris from the Association of Moortümpel-Wassrschlauchverbindungen (Sphagno-Utricularion).

The species is distributed in the subarctic and temperate zones of the northern hemisphere and is also found in New Guinea. In Germany it occurs a little more steadily in southern Bavaria, scattered in central and northern Bavaria, southern Baden-Württemberg, Saxony, Brandenburg and Lower Saxony and rarely in Rhineland-Palatinate, North Rhine-Westphalia, Hesse, Thuringia, Saxony-Anhalt, Mecklenburg-Western Pomerania and Schleswig-Holstein and is considered "critically endangered".

Hazards and protective measures

Although it is endangered or threatened with extinction in some parts of its range, the entire species is considered to be Least Concern due to its wide distribution . There are no known species-specific threats.

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 .
  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .

Individual evidence

  1. ↑ 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 .
  2. ↑ Rafaël Govaerts (Ed.): Utricularia minor. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 24, 2020.
  3. ^ Utricularia minor in the IUCN Red List of Threatened Species 2013.2. Listed by: Lansdown, RV, 2012. Retrieved May 18, 2014.

Web links

Commons : Small water hose ( Utricularia minor )  - album with pictures, videos and audio files