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Arrhenatherum

 
Arrhenatherum

 
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Arrhenatherum
 
 
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Arrhenatherum, commonly called Oat-Grass or Button-grass, is a genus with seven species and subspecies from the grass family Poaceae
Poaceae

Poaceae or Gramineae is a family in the Class Liliopsida of the Magnoliophyta. Plants of this family are usually called grasses; the shrub- or tree-like plants in this family are called bamboo ....
. It grows in Europe
Europe

Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
 and the Mediterranean. Wild forms resemble Wild Oat (Avena
Avena

The oats are a genus of 10-15 species of true grasses . They are native to Europe, Asia and northwest Africa. One species is widely cultivated elsewhere, and several have become naturalized in many parts of the world....
) or Fescue (Festuca). Meadow Oat-grass is also found on some alvar
Alvar

An alvar or pavement barren is a biological environment based on a limestone plain with thin or no soil and, as a result, sparse vegetation....
 formations such as the Stora Alvaret
Stora Alvaret

The Stora Alvaret is a alvar plain on the island of ?land, Sweden. Because of the thin soil mantle and high pH levels, a great assortment of vegetation is found including numerous rare species....
 of Oland, Sweden
Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic countries on the Scandinavian Peninsula in Northern Europe. Sweden has land borders with Norway to the west and Finland to the northeast, and it is connected to Denmark by the ?resund Bridge in the south....
.

Oat-grass is a very common perennial
Perennial plant

A perennial plant or perennial is a plant that lives for more than two years. When used by gardeners or horticulturalists, this term applies specifically to perennial herbaceous plants....
 with yellowish root
Root

In vascular plants, the root is the organ of a plant body that typically lies below the surface of the soil. This is not always the case, however, since a root can also be aerial root or aerating ....
s. The shining stems
Plant stem

A stem is one of two main structural axes of a vascular plant. The stem is normally divided into nodes and internodes, the nodes hold buds which grow into one or more leaf, inflorescence , conifer cones or other stems etc....
 grow to a height of 1.50 m, but die off in winter.






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Arrhenatherum, commonly called Oat-Grass or Button-grass, is a genus with seven species and subspecies from the grass family Poaceae
Poaceae

Poaceae or Gramineae is a family in the Class Liliopsida of the Magnoliophyta. Plants of this family are usually called grasses; the shrub- or tree-like plants in this family are called bamboo ....
. It grows in Europe
Europe

Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
 and the Mediterranean. Wild forms resemble Wild Oat (Avena
Avena

The oats are a genus of 10-15 species of true grasses . They are native to Europe, Asia and northwest Africa. One species is widely cultivated elsewhere, and several have become naturalized in many parts of the world....
) or Fescue (Festuca). Meadow Oat-grass is also found on some alvar
Alvar

An alvar or pavement barren is a biological environment based on a limestone plain with thin or no soil and, as a result, sparse vegetation....
 formations such as the Stora Alvaret
Stora Alvaret

The Stora Alvaret is a alvar plain on the island of ?land, Sweden. Because of the thin soil mantle and high pH levels, a great assortment of vegetation is found including numerous rare species....
 of Oland, Sweden
Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic countries on the Scandinavian Peninsula in Northern Europe. Sweden has land borders with Norway to the west and Finland to the northeast, and it is connected to Denmark by the ?resund Bridge in the south....
.

Oat-grass is a very common perennial
Perennial plant

A perennial plant or perennial is a plant that lives for more than two years. When used by gardeners or horticulturalists, this term applies specifically to perennial herbaceous plants....
 with yellowish root
Root

In vascular plants, the root is the organ of a plant body that typically lies below the surface of the soil. This is not always the case, however, since a root can also be aerial root or aerating ....
s. The shining stems
Plant stem

A stem is one of two main structural axes of a vascular plant. The stem is normally divided into nodes and internodes, the nodes hold buds which grow into one or more leaf, inflorescence , conifer cones or other stems etc....
 grow to a height of 1.50 m, but die off in winter. The leaves
Leaf

In botany, a leaf is an above-ground plant Organ specialized for photosynthesis. For this purpose, a leaf is typically flat and thin, to expose the cells containing chloroplast to light over a broad area, and to allow light to penetrate fully into the tissues....
 are hairless with blunt ligules. The inflorescence
Inflorescence

An inflorescence is a group or cluster of flowers arranged on a Plant stem that is composed of a main branch or a complicated arrangement of branches....
 spreads into a panicle
Panicle

A panicle is a compound raceme, a loose, much-branched Indeterminate growth inflorescence with Pedicel flowers attached along the secondary branches ....
 with 2-flowered bisexual spikelets.

Species

  • Arrhenatherum album: Tall Oat-grass
  • Arrhenatherum elatius
    Arrhenatherum elatius

    Arrhenatherum elatius a species of grass, common in the temperate regions of Europe, which is often used as an ornamental plant. It is native to Europe but can be found elsewhere as an introduced species....
    : 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


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