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