be, arr. leuven, quercus robur, populus canadensis, ranunculus repens, holcus lanatus, arrhenatherum elatius, heracleum sphondylium, angelica sylvestris, urtica dioica, alopecurus pratensis, filipendula ulmaria, cirsium arvense, poa trivialis, agrostis capillaris, ranunculus acris, rumex acetosa, juncus effusus, glechoma hederacea, stellaria graminea, alnus glutinosa, galeopsis tetrahit, galium aparine, cirsium palustre, symphytum officinale, sambucus nigra, cardamine pratensis, prunus serotina, anthoxanthum odoratum, lolium perenne, fraxinus excelsior, phalaris arundinacea, plantago lanceolata, crataegus monogyna, cerastium fontanum, dactylis glomerata, holcus mollis, lysimachia vulgaris, betula pendula, festuca rubra, silene flos-cuculi, centaurea jacea, calystegia sepium, tanacetum vulgare, achillea millefolium, lythrum salicaria, corylus avellana, equisetum arvense, equisetum palustre, lonicera periclymenum, cerastium holosteoides, lathyrus pratensis