pseudotsuga menziesii, pinus sylvestris, betula pendula, avenella flexuosa, vaccinium myrtillus, quercus rubra, dryopteris carthusiana, dryopteris dilatata, quercus robur, prunus serotina, sorbus aucuparia, amelanchier lamarckii, carex pilulifera, ceratocapnos claviculata, frangula alnus