be, arr. leuven, quercus robur, prunus serotina, quercus rubra, betula pendula, sorbus aucuparia, lonicera periclymenum, frangula alnus, agrostis capillaris, pinus sylvestris, holcus lanatus, holcus mollis, molinia caerulea, avenella flexuosa, corylus avellana, castanea sativa, deschampsia flexuosa, sambucus nigra, dryopteris carthusiana, urtica dioica, teucrium scorodonia, calluna vulgaris, populus canadensis, arrhenatherum elatius, juncus effusus, galeopsis tetrahit, acer pseudoplatanus, hypericum perforatum, dryopteris dilatata, ranunculus repens, betula pubescens, rumex angiocarpus, vaccinium myrtillus, polygonatum multiflorum, anthoxanthum odoratum, cytisus scoparius, hieracium umbellatum, cirsium arvense, carex pilulifera, amelanchier lamarckii, rumex acetosa, robinia pseudoacacia, alnus glutinosa, salix caprea, rumex acetosella, achillea millefolium, glechoma hederacea, pteridium aquilinum, stellaria graminea, prunus avium, crataegus monogyna