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