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