be, arr. tongeren, prunus serotina, quercus robur, quercus rubra, pinus sylvestris, sorbus aucuparia, betula pendula, frangula alnus, avenella flexuosa, vaccinium myrtillus, deschampsia flexuosa, fagus sylvatica, lonicera periclymenum, dryopteris carthusiana, castanea sativa, dryopteris dilatata, molinia caerulea, calluna vulgaris, amelanchier lamarckii, carex pilulifera, betula pubescens, pseudotsuga menziesii, ilex aquifolium, pteridium aquilinum, ceratocapnos claviculata, agrostis capillaris, pinus nigra, teucrium scorodonia, holcus mollis, quercus petraea, picea abies, rumex angiocarpus, corylus avellana, galium saxatile, larix kaempferi, rumex acetosella, hedera helix, acer pseudoplatanus, galeopsis tetrahit, melampyrum pratense, cytisus scoparius, populus tremula, robinia pseudoacacia, maianthemum bifolium, rubus gratus, rubus idaeus, convallaria majalis, polygonatum multiflorum, holcus lanatus, moehringia trinervia, sambucus nigra