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