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