be, arr. leuven, quercus robur, prunus serotina, betula pendula, quercus rubra, castanea sativa, sorbus aucuparia, acer pseudoplatanus, teucrium scorodonia, pinus sylvestris, lonicera periclymenum, agrostis capillaris, fagus sylvatica, dryopteris carthusiana, holcus lanatus, urtica dioica, frangula alnus, dryopteris dilatata, corylus avellana, salix caprea, carex pilulifera, juncus effusus, pteridium aquilinum, avenella flexuosa, sambucus nigra, molinia caerulea, holcus mollis, deschampsia flexuosa, glechoma hederacea, ranunculus repens, cirsium arvense, hypericum perforatum, fraxinus excelsior, calluna vulgaris, athyrium filix-femina, vaccinium myrtillus, juncus conglomeratus, galeopsis tetrahit, calamagrostis epigejos, cytisus scoparius, betula pubescens, moehringia trinervia, pinus nigra, hedera helix, juncus tenuis, prunus avium, carpinus betulus, eupatorium cannabinum, dryopteris filix-mas, scrophularia nodosa, robinia pseudoacacia