Salt pond rush

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Salt pond rush
Salt pond rush (Schoenoplectus tabernaemontani)

Salt pond rush ( Schoenoplectus tabernaemontani )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Pond rushes ( Schoenoplectus )
Type : Salt pond rush
Scientific name
Schoenoplectus tabernaemontani
( CCGmel. ) Palla

The salt pond rush ( Schoenoplectus tabernaemontani ) is also called salt pond rush or gray sea rush and belongs to the sourgrass family (Cyperaceae). It is a fairly large rush-like plant with a typical gray-green color. At times it was only regarded as a subspecies of the common pond rush ( Schoenoplectus lacustris ), which is even larger and has a fresher green. It can be found on the banks of waters and is comparatively salt-tolerant. The taxon was named in honor of the early useful scholar Tabernaemontanus .

features

Rhizome
Spirre (inflorescence)
Inflorescence. The bracts are covered with reddish warts.
Blossom with two styles and a bract.

Salt pond rushes are perennial, herbaceous plants that reach heights of 80 to 150 (rarely 250) centimeters. They have long, thick, underground creeping rhizomes as a permanent organ. Their stem, which is usually round to the top, is gray to blue-green in color. The leaf sheaths are located at the base of the shoot and have short, rarely more than ten centimeters long leaf blades . The spiral inflorescence appears in June and July, consists of relatively few (up to over 50) spikelets and has a diameter of no more than eight centimeters. It is therefore smaller, denser and poor in flowers than the common pond rush. The brown husks have numerous red warts, especially on and around the median nerve. Two scars are always formed. The nuts are lenticular and 2 to 2.5 mm long.

The chromosome number is 2n = (38, 40) 42 (44).

Occurrence

The salt pond rush forms its own dominant stocks or grows in reed communities of standing or flowing water, for example on ditches, streams, ponds (especially clear ponds), ponds and in spring swamps. In river estuaries on the coast it colonizes brackish and freshwater reeds influenced by the tides, occurs in marshland trenches and on flushing areas. Preference is given to extremely wet to flooded, nutrient-rich and alkaline-rich (sometimes calcareous), muddy, sandy and clay soils, which can also be salty. This salt tolerance causes the main areas of distribution in coastal areas, on river underflows as well as in inland salt points and in gypsum keuper areas . Outside of this, this plant is absent in large areas, for example in the mountains.

The species is cosmopolitan. In Central Europe it occurs absent-mindedly or relatively rarely, more frequently in the coastal regions. It thrives in societies of the Phragmition Association, for example in the Cladietum or in the company of Bolboschoenus maritimus .

literature

  • Eckhard Garve: Atlas of the endangered fern and flowering plants in Lower Saxony and Bremen. Nature conservation landscape conservation Lower Saxony 30, 1994. ISBN 3-922321-68-2
  • Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2000, ISBN 3-8001-3364-4 .
  • Erich Oberdorfer: Plant-sociological excursion flora. Ulmer, Stuttgart 1990 (6th edition). ISBN 3-8001-3454-3

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.  161 .
  2. ↑ Rafaël Govaerts (ed.): Schoenoplectus tabernaemontani. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 28, 2016.

Web links

Commons : Salt pond rush  - album with pictures, videos and audio files