Arrhenatherum
| oatgrass button-grass |
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| tall oatgrass (Arrhenatherum elatius) | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| (unranked): | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Genus: |
Arrhenatherum P.Beauv. |
| Type species | |
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Arrhenatherum avenaceum P.Beauv. ex Boiss. |
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| Synonyms | |
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Arrhenatherum, commonly called oatgrass or button-grass, is a genus of Eurasian and North African plants in grass family.
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.
numerous species now considered better suited to other genera: Avenula Danthoniastrum Duthiea Helictotrichon Sphenopholis
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Wikipedia