be, arr. leuven, urtica dioica, populus canadensis, heracleum sphondylium, arrhenatherum elatius, ranunculus repens, poa trivialis, holcus lanatus, symphytum officinale, cirsium arvense, galium aparine, alopecurus pratensis, phalaris arundinacea, glechoma hederacea, filipendula ulmaria, tanacetum vulgare, calystegia sepium, quercus robur, angelica sylvestris, rumex obtusifolius, phragmites australis, impatiens glandulifera, rumex acetosa, alnus glutinosa, anthriscus sylvestris, galeopsis tetrahit, dactylis glomerata, bidens frondosa, ranunculus acris, lolium perenne, agrostis capillaris, prunus serotina, juncus effusus, equisetum arvense, elymus repens, iris pseudacorus, sambucus nigra, stellaria graminea, agrostis stolonifera, lythrum salicaria, cardamine pratensis, lycopus europaeus, persicaria amphibia, lysimachia vulgaris, heracleum mantegazzianum, quercus rubra, aegopodium podagraria, epilobium hirsutum, humulus lupulus, plantago lanceolata, lolium multiflorum