be, arr. leuven, arrhenatherum elatius, holcus lanatus, heracleum sphondylium, ranunculus repens, tanacetum vulgare, urtica dioica, rumex acetosa, cirsium arvense, poa trivialis, prunus serotina, quercus robur, agrostis capillaris, alopecurus pratensis, achillea millefolium, dactylis glomerata, lolium perenne, festuca rubra, plantago lanceolata, ranunculus acris, populus canadensis, elymus repens, symphytum officinale, glechoma hederacea, galium aparine, stellaria graminea, equisetum arvense, cerastium fontanum, lolium multiflorum, trifolium repens, phalaris arundinacea, anthriscus sylvestris, anthoxanthum odoratum, centaurea jacea, quercus rubra, angelica sylvestris, agrostis stolonifera, holcus mollis, rumex obtusifolius, filipendula ulmaria, juncus effusus, calystegia sepium, leucanthemum vulgare, lathyrus latifolius, pilosella aurantiaca, trifolium pratense, silene coronaria, galinsoga quadriradiata, vicia hirsuta, hypericum perforatum, vicia cracca