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Cladus: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Liliopsida
Subclassis: Commelinidae
Ordo: Poales
Familia: Poaceae
Subfamilia: Pooideae
Tribus: Aveneae
Genus: Arrhenatherum
Sectiones: A. sect. Pseudohelictotrichon
Species: A. album - A. almijarense - A. americanum - A. asperum - A. avenaceum - A. baeticum - A. barbatum - A. biaristatum - A. bispanicum - A. bromoides - A. bulbosum - A. calderae - A. capense - A. cechicum - A. compactum - A. convolutum - A. cycladum - A. decorum - A. delavayi - A. desertorum - A. dodii - A. elatius - A. elongatum - A. erianthum - A. exserens - A. fedtschenkoi - A. fernandesii - A. filifolium - A. friesiorum - A. galpinii - A. hackelii - A. hirtulum - A. hookeri - A. ilievii - A. junghuhnii - A. kentuckense - A. kotschyi - A. lachnanthum - A. leoninum - A. longifolium - A. longum - A. macrostachyum - A. mannii - A. milanjianum - A. mongolicum - A. montanum - A. mortonianum - A. murcicum - A. namaquense - A. natalense - A. nebrodense - A. neumayeriauum - A. newtonii - A. oligostachyum - A. palaestinum - A. pallens - A. parlatorei - A. pennsylvanicum - A. phaenoneuron - A. pratense - A. precatorium - A. pubescens - A. quinquesetum - A. rigidulum - A. riofrioi - A. rivulare - A. rumelicum - A. rupestre - A. sardoum - A. sedenense - A. setaceum - A. sulcatum - A. thorei - A. tuberosum - A. turgidulum - A. umbrosum - A. virescens - A. zavadilianu


Arrhenatherum P.Beauv.

Vernacular names
Česky: Ovsík
Polski: Rajgras


* GBIF .

Arrhenatherum, commonly called Oat-grass or Button-grass, is a genus with seven species and subspecies from the grass family Poaceae.[1] It grows in Europe and the Mediterranean. Wild forms resemble Wild Oat (Avena) or Fescue (Festuca). Meadow Oat-grass is also found on some alvar formations such as the Stora Alvaret of Oland, Sweden.

Oat-grass is a very common perennial with yellowish roots. The shining stems grow to a height of 1.50 m, but die off in winter. The leaves are hairless with blunt ligules. The inflorescence spreads into a panicle with 2-flowered bisexual spikelets.


Arrhenatherum album: Tall Oat-grass
Arrhenatherum calderae
Arrhenatherum elatius: False Oat-grass, Tall Oat-grass, Tall Meadow Oat
Arrhenatherum elatius var. bulbosum: Onion Couch, Tuber Oat-grass
Arrhenatherum elatius var. elatius: False Oat-grass, French Rye, Meadow Oat-grass
Arrhenatherum kotschyii
Arrhenatherum longifolium
Arrhennatherum palaestinum
Arrhenatherum pallens


^ Watson L, Dallwitz MJ. (2008). "The grass genera of the world: descriptions, illustrations, identification, and information retrieval; including synonyms, morphology, anatomy, physiology, phytochemistry, cytology, classification, pathogens, world and local distribution, and references". The Grass Genera of the World. Retrieved 2009-08-19.

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