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