Grove sedge

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Grove sedge
Grove sedge (Carex otrubae)

Grove sedge ( Carex otrubae )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Grove sedge
Scientific name
Carex otrubae
Podp.

The grove sedge ( Carex otrubae ), also known as the false fox sedge , is a member of the sour grass family (Cyperaceae).

description

The perennial herbaceous plant has no runners and forms medium-sized, dense clumps . It usually reaches heights of between 30 and 60 cm. The stalk grows stiffly upright and is not or only weakly winged. It reaches a width of 2 to 3 mm. The leaves are 4 to 8 mm wide. The arch of the ligule attachment is significantly higher than it is broad and more or less pointed. Overall, it reaches a height of around 10 to 17 mm.

The inflorescence usually consists of five to ten spikelets , which are spread over a length of 4 to 10 cm on the stalk. Usually they are not very close, the lowest ones are often a little further away. They are initially green, later yellow-brown to brown in color. The bracts are often longer than the inflorescence.

The greenish to light brown fruit sacs are 5 to 6 mm long and about 2.5 mm wide. They shine and are clearly longitudinally nerved on both sides. The beak is split equally deep on both sides.

The grove sedge blooms mainly in the months of May and June, more rarely until October.

The number of chromosomes is 2n = 58 or 60.

Similar species

The grove sedge differs from the very similar fox sedge ( Carex vulpina ), among other things, in the significantly more acute-angled ligule arch and the weaker winged stem. It usually stays smaller than the fox sedge.

  • Habitus

  • Grove sedge, ( herbarium evidence )

  • Stem cross-section

  • Detail section with ligule

  • Grove sedge, infructescence

  • Fruit cluster

  • Tubes with cover sheets

Occurrence

The distribution area of ​​the grove sedge includes Macaronesia, Europe and extends from the Mediterranean area to Pakistan and northwestern China. It is a Eurasian-suboceanic floral element . It occurs sparsely in Germany, Austria and Switzerland.

Carex otrubae grows in alluvial forests, on meadows and in ditches. It prefers moist to wet, nutrient-rich, loamy to clay soils. In Central Europe it thrives above all in companies of the Alno-Ulmion, Magnocaricion or Agropyro-Rumicion associations.

Taxonomy

The grove sedge Carex otrubae podp. has the synonym Carex nemorosa Rebent.

literature

  • Konrad von Weihe (ed.): Illustrated flora. Germany and neighboring areas. Vascular cryptogams and flowering plants . Founded by August Garcke. 23rd edition. Paul Parey, Berlin / Hamburg 1972, ISBN 3-489-68034-0 .
  • Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 6th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1990, ISBN 3-8001-3454-3 .
  • 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 .
  • Dietmar Aichele, Heinz-Werner Schwegler: Our grasses. 8th edition. Franckh, Stuttgart 1986, ISBN 3-440-05284-2 .

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.  173 .
  2. ↑ Rafaël Govaerts (ed.): Carex otrubae. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 15, 2016.

Web links

Commons : grove sedge  - album with pictures, videos and audio files