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
