be, arr. leuven, quercus robur, populus canadensis, arrhenatherum elatius, holcus lanatus, prunus serotina, angelica sylvestris, heracleum sphondylium, betula pendula, agrostis capillaris, lonicera periclymenum, ranunculus repens, quercus rubra, urtica dioica, corylus avellana, sorbus aucuparia, cirsium arvense, glechoma hederacea, alnus glutinosa, rumex acetosa, filipendula ulmaria, juncus effusus, frangula alnus, alopecurus pratensis, fraxinus excelsior, stellaria graminea, sambucus nigra, crataegus monogyna, galeopsis tetrahit, poa trivialis, ranunculus acris, cirsium palustre, anthoxanthum odoratum, galium aparine, acer pseudoplatanus, holcus mollis, cardamine pratensis, centaurea jacea, hieracium umbellatum, molinia caerulea, symphytum officinale, hypericum perforatum, ribes rubrum, cerastium fontanum, anemone nemorosa, lysimachia vulgaris, viburnum opulus, salix caprea, festuca rubra, juncus conglomeratus, achillea millefolium