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