Agrostis
Red bent grass ( Agrostis capillaris )
The bunch grasses ( Agrostis ) is a genus in the family of grasses ( Poaceae ). The White bentgrass ( Agrostis stolonifera ) has a meaning as a sports turf grass, that is, on golf greens, as it can withstand a cut back to four millimeters in length.
Description
Bunch grasses are clump -forming, reed-like habit of grasses that form short underground runners and are not greater than 1 meter. The linealischen leaves are 5 to 11 mm wide and the youngest leaves appear rolled in cross-section and not folded when cutting. The often significantly grooved, bare, rigid leaves have a hairless leaf sheath and quite long pointed ligule.
The panicles are usually yellowish or reddish, but there are green colored. The lower branches of the panicle are apparently three or more in the Rispenachse, but there are only two basal branches. The spikelets flowered, very fine, awnless, stalked and single standing, and they appear on the page compressed. The Ährchenachse is also bald and not hairy. Between envelope and lemma there are no empty husks.
Occurrence
Most bunch grasses bloom between June and September. They are in full bloom, especially in the early summer months. They grow both wet and relatively dry surface and can occur on nutrient-rich fields and nitrogen-poor meadows. Most bunch grasses are also hardy and enduring. They occur on the northern and southern hemisphere in temperate zones.
Types (selection)
Worldwide, there are 220 species, including 11 species occur in Germany before:
- Reed - bent grass or Tender bentgrass ( Agrostis agrostiflora ( Beck) Rauschert, syn: A. schraderiana Bech. ), Origin: Europe (Alps, Apennines ).
- Alpine bentgrass ( Agrostis alpina Scop. ), Origin: Mountains of Europe.
- Dog- bent grass or marsh bentgrass ( Agrostis canina L.), Origin: Eurasia, naturalized in North America.
- Red bentgrass ( Agrostis capillaris L., Syn A. tenuis Sibth, A. vulgaris With.. ), Origin: Eurasia, naturalized in America, Greenland, South Africa, Australia and New Zealand.
- Castilian bentgrass ( Agrostis castellana Boiss & Reut. . ), Origin: Southern Europe, Turkey.
- Giant bent grass ( Agrostis gigantea Roth), Origin: North Africa, Eurasia, naturalized in America, South Africa, Australia and New Zealand.
- Rock bentgrass ( Agrostis rupestris All. ), Origin: Mountains of Europe.
- Rough bentgrass ( Agrostis scabra Willd. ), Origin: Northeast Asia, North America, Greenland, naturalized in Germany and Austria.
- Schleicher bentgrass ( Agrostis schlei cheri Jord & ext. ), Origin: Mountains of Southern and Central Europe.
- White bentgrass ( Agrostis stolonifera L.; Syn: A. alba L. var stolonifera (L.) Sm ), Origin: Eurasia, North Africa, naturalized in America, Australia and New Zealand.
- Sand bent grass ( Agrostis vinealis Schreb. ), Origin: Eurasia, North West Africa, Greenland.
Outside Germany, before:
- Agrostis curtisii Kerguélen, Origin: Iberian Peninsula, France, British islands.
- Veil bentgrass ( Agrostis nebulosa Boiss & Reut. . ), Origin: Iberian Peninsula, Morocco.
- Agrostis sandwicensis Hillebr, home. Hawaii.
- . Agrostis tenerrima Trin, Origin: North West Africa, Iberian Peninsula, France.