be, arr. leuven, urtica dioica, cirsium arvense, ranunculus repens, bidens frondosa, poa trivialis, arrhenatherum elatius, symphytum officinale, holcus lanatus, phalaris arundinacea, calystegia sepium, populus canadensis, galium aparine, tanacetum vulgare, glechoma hederacea, phragmites australis, heracleum sphondylium, lolium multiflorum, impatiens glandulifera, rumex obtusifolius, alopecurus pratensis, agrostis stolonifera, galeopsis tetrahit, lysimachia vulgaris, elymus repens, juncus effusus, persicaria hydropiper, lolium perenne, lythrum salicaria, agrostis capillaris, prunus serotina, lycopus europaeus, solidago gigantea, filipendula ulmaria, dactylis glomerata, rumex acetosa, quercus robur, angelica archangelica, trifolium repens, rumex crispus, stachys palustris, cardamine pratensis, iris pseudacorus, eupatorium cannabinum, erigeron canadensis, solanum dulcamara, plantago major, persicaria amphibia, epilobium ciliatum, artemisia vulgaris, vicia cracca