Dog ostrich grass

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Dog ostrich grass
Dog ostrich panicle (Agrostis canina)

Dog ostrich panicle ( Agrostis canina )

Systematics
Commelinids
Order : Sweet grass (Poales)
Family : Sweet grasses (Poaceae)
Subfamily : Pooideae
Genre : Ostrich grasses ( Agrostis )
Type : Dog ostrich grass
Scientific name
Agrostis canina
L.

The Agrostis canina ( Agrostis canina ), also marsh bent grass called, is a species of Agrostis ( Agrostis ) in the family of the sweet grasses (Poaceae). It is a pioneer plant on banks, in flat moors and on pitted soils .

description

Tufts of leaves

The dog ostrich grass is a perennial herbaceous plant and reaches heights of 15 to 75 centimeters. It forms blue-green lawns and has long above-ground creeping shoots with fully developed leaves, roots and tufts of leaves are formed at the nodes. There are no subterranean branches. The bare stalks have three to six nodes . The ligule form a 2 to 4 millimeter long, membranous border. The leaf blades are 3 to 15 centimeters long and 1 to 2 millimeters wide.

The panicle is 4 to 15 inches long and up to 7 inches wide. Three to seven side branches go in clusters from the main axis. The spikelets are single-flowered and 1.8 to 2.5 millimeters long. The glumes are single-nerved, about the same length as the spikelets, the upper being slightly shorter than the lower. The lemma is five-nerved, broadly lanceolate, smooth and glabrous and 1.5 to 1.8 millimeters long. The kneeled awn is 2 to 4.5 millimeters long. The palea becomes 0.3 to 0.4 millimeters. The anthers are 1 to 1.5 millimeters long, the fruit about 1.2 millimeters. The number of chromosomes is 2n = 14. The flowering period is from June to August.

Similar species

The dog ostrich grass differs from the narrow-lisked ostrich grass ( Agrostis vinealis ) and other types of grass with short awns and short palea due to the leafy creeping shoots and the long stamens.

Distribution and location requirements

The hound ostrich grass can be found in the temperate zones of Eurasia. Since it is also used for lawns, it was introduced to other temperate areas. The dog ostrich grass forms dense stands in places and is widespread from the plains to the mountains . It can be found in flat and spring moors, on wet meadows and paths, in swamp forests, on muddy bottoms of drained ponds and on the coast in grassy dune valleys. It thrives on oozing wet and waterlogged, nutrient-poor and lime-poor, moderately acidic, musty-peaty-humus clay soils or swamp humus or sandy soils. It occurs in initial societies of the association Caricion fuscae or in those of the order Scheuchzerietalia.

Common names

For dog ostrich grass, the names Jägerbart (Oldenburg), Rechgras ( Bern ) and ostrich grass are or were, in some cases only regionally, in use.

proof

literature

  • HJ Conert: Parey's book of grasses. Recognize and determine the grasses of Germany . Blackwell Wissenschafts-Verlag, Berlin, Vienna 2000, ISBN 3-8263-3327-6 .

Individual evidence

  1. ↑ a b c H. J. Conert: Pareys grass book. Recognize and determine the grasses of Germany . Blackwell Wissenschafts-Verlag, Berlin, Vienna 2000, ISBN 3-8263-3327-6 . , P. 96
  2. ↑ 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.  252 .
  3. ↑ a b Sheng-lian Lu, Sylvia M. Phillips: Agrostis. : Agrostis canina , p. 347 - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (ed.): Flora of China. Volume 22: Poaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 2006, ISBN 1-930723-50-4 .
  4. ↑ Rafaël Govaerts (ed.): Agrostis canina. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 25, 2020.
  5. ^ Carl Jessen : The German folk names of plants , published by Philipp Cohen Hanover 1882, page 13

Web links

Commons : Dog's Ostrich ( Agrostis canina )  - Album with pictures, videos and audio files