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