Avenella flexuosa, commonly known as wavy hair-grass, is a species of bunchgrass in the grass family widely distributed in Eurasia, Africa, South America, and North America.Kew World Checklist of Selected Plant Families
Description Wavy hair-grass, Avenella flexuosa, has wiry leaves and delicate, shaking panicles formed of silvery or purplish-brown flower heads on wavy, hair-like stalks. The leaves are bunched in tight tufts with plants forming a very tussocky, low sward 5 to 20 cm tall before flowering, to 30 cm high.
Distribution and habitat Avenella flexuosa is found naturally in dry grasslands and on moors and heaths.
It is also an important component of the ground flora of birch and oak woodland.see British NVC community W11 (Quercus petraea–Betula pubescens–Oxalis acetosella woodland) and British NVC community W16 (Quercus spp.–Betula spp.–Deschampsia flexuosa woodland).
The plant has a preference for acidic, free-draining soil, and avoids chalk and limestone areas. It can exist over above sea level.BSBI Description retrieved 1 December 2010.
See also Woodland and scrub communities in the British National Vegetation Classification system—birch and oak woodland
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