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