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