Swamp trident

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Swamp trident
Swamp trident (Triglochin palustris)

Swamp trident ( Triglochin palustris )

Systematics
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Frog-spoon-like (Alismatales)
Family : Trident family (Juncaginaceae)
Genre : Tridents ( triglochin )
Type : Swamp trident
Scientific name
Triglochin palustris
L.

The swamp trident ( Triglochin palustris ) is a perennial, deciduous hemicryptophyte from the Juncaginaceae family . The scientific name is derived from the Greek tria for three and glochis for tip because of its 3 partial fruits.

Swamp trident ( Triglochin palustris ), flowers
Swamp trident ( Triglochin palustris ), unripe fruits
Swamp trident ( Triglochin palustris ), ripe fruits

description

The swamp trident is 15 to 40 cm tall and has a slightly triangular leafless stem. The grass-like basal sheets are narrowly linear and have a two-part ligula. The mostly radial and hermaphroditic single flowers are only loosely in a relatively short cluster. They are star-shaped and mostly greenish in color. The tepals are no longer than 4 mm. The flower also forms a three-feathery stigma and an upper ovary. The also three-part, egg-shaped split fruit is only about 8 mm long and spreads from below when ripe.

The chromosome number of the species is 2n = 24.

Occurrence

The swamp trident blooms from June to August and grows in flat and rain bogs, on damp, temporarily flooded, sometimes stepped meadows at the edges of bodies of water, often in reed communities and on ponds and peat cuttings. He is also weakly salt tolerant. While it is relatively rare in the interior, it is quite widespread on the coasts. In Germany it is on the red list of vascular plants and is classified there as "endangered" (class 3). The swamp trident is found in temperate and subarctic zones all over the world. It occurs in Europe as well as in parts of Asia and North America. It also grows in New Zealand and South America. There, however, its stocks are falling sharply.

In the Allgäu Alps, it rises in the Kleiner Walsertal between Kanzelwand and Kuhgerenalpe up to 1900 m above sea level.

ecology

The swamp trident often has pre-female flowers that are pollinated by the wind. The split fruits are mostly spread through the water.

Individual evidence

  1. ↑ Eckehart J. Jäger, Klaus Werner (Ed.): Exkursionsflora von Deutschland . 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 .
  2. ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Stuttgart, Verlag Eugen Ulmer, 2001. Page 109. ISBN 3-8001-3131-5
  3. ↑ Rafaël Govaerts (Ed.): Triglochin palustris - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on August 18, 2016.
  4. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , p. 136.

Web links

Commons : Triglochin palustris  - album with pictures, videos and audio files