be, arr. leuven, quercus rubra, prunus serotina, quercus robur, fagus sylvatica, sorbus aucuparia, pinus sylvestris, castanea sativa, betula pendula, dryopteris carthusiana, dryopteris dilatata, vaccinium myrtillus, frangula alnus, lonicera periclymenum, acer pseudoplatanus, avenella flexuosa, deschampsia flexuosa, carex pilulifera, pteridium aquilinum, molinia caerulea, pinus nigra, teucrium scorodonia, ilex aquifolium, corylus avellana, betula pubescens, picea abies, pseudotsuga menziesii, athyrium filix-femina, juncus effusus, quercus petraea, convallaria majalis, sambucus nigra, luzula pilosa, carpinus betulus, calluna vulgaris, agrostis capillaris, hedera helix, moehringia trinervia, holcus mollis, urtica dioica, larix decidua, oxalis acetosella, maianthemum bifolium, larix kaempferi, fraxinus excelsior, impatiens parviflora, salix caprea, galeopsis tetrahit, robinia pseudoacacia, polygonatum multiflorum, dryopteris filix-mas