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