From Wikipedia, the free encyclopedia
Genus of grasses
Arrhenatherum , commonly called oatgrass or button-grass , is a
genus of
Eurasian and
North African plants in the
grass family .
[4]
[5]
[6]
[7]
Description
Wild forms can resemble
wild oat (Avena ) or
fescue (Festuca ). Oatgrasses are very common
perennials with yellowish
roots . The shining
stems grow to a height of 1.5 meters, but die off in winter. The
leaves are hairless with blunt ligules. The
inflorescence is a
panicle with two-flowered bisexual spikelets.
[8]
Species
[3]
[9]
Arrhenatherum album - tall oatgrass - Mediterranean from Portugal to Cyprus
Arrhenatherum calderae - Tenerife in Canary Islands
Arrhenatherum elatius - false oatgrass, tall oatgrass, tall meadow oat - Eurasia + North Africa from Iceland to Canary Islands + Kazakhstan; naturalized in East Asia,
[10] Australia,
[11] New Zealand, the Americas
[12]
[13]
Arrhenatherum kotschyii - Turkey, Caucasus, Syria, Lebanon, Palestine, Jordan, Iraq, Iran, Afghanistan
Arrhenatherum longifolium - France, Spain, Portugal, Morocco
Arrhennatherum palaestinum - eastern Mediterranean from Greece to Iraq
Arrhenatherum pallens - Portugal
formerly included
[3]
numerous species now considered better suited to other genera:
Avenula
Danthoniastrum
Duthiea
Helictochloa
Helictotrichon
Sphenopholis
See also
References
^ lectotype designated by L.K. Pfeiffer, Nom. 1: 274 (1872)
^
Tropicos, Arrhenatherum P. Beauv.
^
a
b
c
"World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew" .
^ Watson L, Dallwitz MJ. (2008).
"The Grass Genera of the World: Arrhenatherum " . The Grass Genera of the World . Retrieved 2009-08-19 .
^
Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie 55-56 descriptions in Latin, commentary in French
^
Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie plate XI (11), figure V (5) at lower left line drawings of Arrhenatherum avenaceum
^
Altervista Flora Italiana genere Arrhenatherum
^ Valdes, B. & H. Scholz. 2006. The Euro+Med treatment of Gramineae - a generic synopsis and some new names. Willdenowia 36(2): 657–669
^
The Plant List search for Arrhenatherum
^
Flora of China Vol. 22 Page 322 燕麦草属 yan mai cao shu Arrhenatherum P. Beauvois
^
Atlas of Living Australia, Oatgrass, Arrhenatherum elatius (L.) P.Beauv. ex J.Presl & C.Presl
^
Biota of North America Program 2013 county distribution map
^ Rosengurtt, B., B. R. A. Maffei & P. I. Artucio. 1970. Gramíneas Uruguayas [i–vii], 1–489. Universidad de la República, Montevideo