be, arr. leuven, quercus robur, arrhenatherum elatius, holcus lanatus, agrostis capillaris, populus canadensis, cirsium arvense, ranunculus repens, rumex acetosa, urtica dioica, stellaria graminea, heracleum sphondylium, prunus serotina, glechoma hederacea, galeopsis tetrahit, poa trivialis, tanacetum vulgare, alopecurus pratensis, juncus effusus, betula pendula, achillea millefolium, angelica sylvestris, ranunculus acris, anthoxanthum odoratum, hypericum perforatum, plantago lanceolata, festuca rubra, galium aparine, holcus mollis, dactylis glomerata, cerastium holosteoides, filipendula ulmaria, alnus glutinosa, lolium perenne, sambucus nigra, elymus repens, crataegus monogyna, cerastium fontanum, quercus rubra, centaurea jacea, phalaris arundinacea, sorbus aucuparia, cirsium palustre, trifolium repens, symphytum officinale, equisetum arvense, lonicera periclymenum, carex hirta, vicia cracca, calystegia sepium, frangula alnus