be, arr. leuven, urtica dioica, cirsium arvense, symphytum officinale, ranunculus repens, arrhenatherum elatius, heracleum sphondylium, poa trivialis, populus canadensis, calystegia sepium, phalaris arundinacea, phragmites australis, holcus lanatus, galium aparine, alopecurus pratensis, filipendula ulmaria, glechoma hederacea, angelica sylvestris, lythrum salicaria, galeopsis tetrahit, persicaria amphibia, rumex obtusifolius, tanacetum vulgare, lolium perenne, rumex acetosa, agrostis stolonifera, iris pseudacorus, juncus effusus, elymus repens, ranunculus acris, lycopus europaeus, epilobium hirsutum, dactylis glomerata, lysimachia vulgaris, equisetum arvense, carex acuta, vicia cracca, anthriscus sylvestris, cardamine pratensis, lathyrus pratensis, solanum dulcamara, cerastium fontanum, rumex crispus, cirsium palustre, plantago lanceolata, persicaria hydropiper, equisetum palustre, trifolium repens, sambucus nigra, quercus robur, glyceria maxima