Arrhenatherum

Oat grass
Oat grass (Arrhenatherum elatius)
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
(unranked):	Commelinids
Order:	Poales
Family:	Poaceae
Genus:	Arrhenatherum P.Beauv.
Species
See text.

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.

Species

• 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

See also

• List of Poaceae genera

References

1. ^ 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. http://delta-intkey.com/grass/www/arrhenat.htm. Retrieved 2009-08-19. 

External links

• Arrhenatherum