be, arr. leuven, quercus robur, holcus lanatus, arrhenatherum elatius, agrostis capillaris, ranunculus repens, rumex acetosa, achillea millefolium, holcus mollis, poa trivialis, urtica dioica, tanacetum vulgare, plantago lanceolata, festuca rubra, cirsium arvense, ranunculus acris, juncus effusus, heracleum sphondylium, dactylis glomerata, anthoxanthum odoratum, lolium perenne, prunus serotina, stellaria graminea, populus canadensis, alopecurus pratensis, quercus rubra, trifolium repens, betula pendula, galeopsis tetrahit, angelica sylvestris, elymus repens, rumex angiocarpus, hypericum perforatum, galium aparine, frangula alnus, cerastium holosteoides, hypochaeris radicata, lonicera periclymenum, sorbus aucuparia, centaurea jacea, rumex acetosella, glechoma hederacea, alnus glutinosa, sambucus nigra, cerastium fontanum, cirsium palustre, trifolium pratense, lotus pedunculatus, filipendula ulmaria, agrostis stolonifera, rumex obtusifolius