be, arr. leuven, quercus rubra, prunus serotina, quercus robur, castanea sativa, sorbus aucuparia, betula pendula, lonicera periclymenum, acer pseudoplatanus, pinus sylvestris, fagus sylvatica, dryopteris dilatata, dryopteris carthusiana, teucrium scorodonia, frangula alnus, corylus avellana, vaccinium myrtillus, carex pilulifera, avenella flexuosa, molinia caerulea, pteridium aquilinum, deschampsia flexuosa, sambucus nigra, agrostis capillaris, salix caprea, athyrium filix-femina, juncus effusus, pinus nigra, urtica dioica, calluna vulgaris, betula pubescens, fraxinus excelsior, hedera helix, convallaria majalis, holcus mollis, ilex aquifolium, holcus lanatus, polygonatum multiflorum, robinia pseudoacacia, luzula pilosa, prunus avium, glechoma hederacea, galeopsis tetrahit, juncus conglomeratus, moehringia trinervia, dryopteris filix-mas, carpinus betulus, alnus glutinosa, ranunculus repens, populus tremula, cytisus scoparius