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