Horst red fescue

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Horst red fescue
Horst red fescue (Festuca nigrescens)

Horst red fescue ( Festuca nigrescens )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sweet grasses (Poaceae)
Genre : Fescue ( festuca )
Type : Horst red fescue
Scientific name
Festuca nigrescens
Lam.

The eyrie red fescue ( Festuca nigrescens ), also called blackish red fescue , is a sweet grass (Poaceae) and belongs to the red fescue group ( Festuca rubra agg.). This species is a complex of insufficiently researched clans. There are currently two subspecies mentioned in the literature : Festuca nigrescens subsp. nigrescens and the fine-leaved Festuca nigrescens subsp. microphylla .

Distribution and location

The species is common in large parts of Europe . In Germany it occurs mainly in the drifts and rough meadows of the mountainous region. It also grows in Ruderalfluren and settlement fallow , herbaceous forest clearing hallways , in Nardus grasslands , in oat-Talfettwiesen , in public spaces and equipment. The grass prefers fresh, often nutrient-poor, acid and humus soils.

description

The Horst-Rot-Fescue is a perennial hemicryptophyte . It only forms runners around 2 to 5 millimeters long and therefore grows in a characteristically dense manner. It reaches heights of between 20 and 90 centimeters. The bristly leaf blades are 0.4 to 1, sometimes 1.1 millimeters in diameter. They have five to seven vascular bundles and are usually dark green, more rarely a little blue-green. The tip is smooth. The spikelets are 6.5 to 9.5 millimeters long. The lemmas reach 4 to 6.5 millimeters in length. They carry a 1 to 4 millimeter long awn. The species blooms in June.

The number of chromosomes is 2n = 28 or 42.

Individual evidence

  1. ↑ Jürgen Dengler: Standard list of the narrow-leaved fescue clans (Festuca ovina agg. And F. rubra agg.) In Germany , version of March 6, 2000 PDF
  2. ↑ Rafaël Govaerts (ed.): Festuca nigrescens. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 27, 2020.
  3. ^ CE Hubbard: Grasses - Description, Distribution, Use. Ulmer Verlag, Stuttgart 1985, ISBN 3-8001-2537-4 .
  4. ↑ 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 .
  5. ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Stuttgart, Verlag Eugen Ulmer, 2001. ISBN 3-8001-3131-5 . Page 209.

Web links

Commons : Festuca rubra  - album with pictures, videos and audio files