Arrhenatherum, commonly called oat-grass or button-grass, is a genus of Eurasian and North African plants in the grass family.
Description
Wild forms can resemble wild oat (Avena) or fescue (Festuca). Oat-grasses are very common perennials with yellowish roots. The shining stems grow to a height of , but die off in winter. The leaves are hairless with blunt ligules. The inflorescence is a panicle with two-flowered bisexual spikelets.
Species
- Arrhenatherum album - tall oat-grass - Mediterranean from Portugal to Cyprus
- Arrhenatherum calderae - Tenerife in Canary Islands
- Arrhenatherum elatius - false oat-grass, tall oat-grass, tall meadow oat - Eurasia + North Africa from Iceland to Canary Islands + Kazakhstan; naturalized in East Asia, Australia, New Zealand, the Americas
- 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
numerous species now considered better placed in other genera Avenula Danthoniastrum Duthiea Helictochloa Helictotrichon Sphenopholis
See also
References