be, arr. leuven, quercus rubra, quercus robur, prunus serotina, sorbus aucuparia, castanea sativa, betula pendula, lonicera periclymenum, frangula alnus, pinus sylvestris, fagus sylvatica, dryopteris dilatata, dryopteris carthusiana, deschampsia flexuosa, avenella flexuosa, vaccinium myrtillus, acer pseudoplatanus, molinia caerulea, betula pubescens, ilex aquifolium, carex pilulifera, corylus avellana, amelanchier lamarckii, pteridium aquilinum, hedera helix, sambucus nigra, teucrium scorodonia, calluna vulgaris, polygonatum multiflorum, robinia pseudoacacia, athyrium filix-femina, juncus effusus, rhododendron ponticum, agrostis capillaris, pinus nigra, holcus mollis, convallaria majalis, prunus avium, alnus glutinosa, pseudotsuga menziesii, galeopsis tetrahit, fraxinus excelsior, larix kaempferi, urtica dioica, maianthemum bifolium, carpinus betulus, luzula pilosa, populus tremula, salix caprea, potentilla indica, lamium galeobdolon