Typical sub-Atlantic Quercus robur-Quercus petraea-Carpinus betulus forests of northern Europe, north to southern Norway, southern Sweden and southern Finland, and of the eastern Paris basin and Lorraine, with Stellaria holostea, Carex brizoides, Narcissus pseudonarcissus, Polygonatum verticillatum, Potentilla sterilis, Ranunculus nemorosus, Poa chaixii, Luzula sylvatica, Luzula luzuloides.