pinus nigra, pinus sylvestris, betula pendula, sorbus aucuparia, amelanchier lamarckii, castanea sativa, dryopteris dilatata, juncus effusus, prunus serotina, quercus robur, alnus incana, calluna vulgaris, carex pilulifera, dryopteris carthusiana, juncus squarrosus, pseudotsuga menziesii, quercus rubra, robinia pseudoacacia