be, arr. leuven, populus canadensis, urtica dioica, heracleum sphondylium, glechoma hederacea, symphytum officinale, galium aparine, sambucus nigra, angelica sylvestris, ranunculus repens, filipendula ulmaria, quercus robur, poa trivialis, alnus glutinosa, calystegia sepium, fraxinus excelsior, cirsium arvense, arrhenatherum elatius, phalaris arundinacea, holcus lanatus, phragmites australis, galeopsis tetrahit, acer pseudoplatanus, rumex obtusifolius, alopecurus pratensis, ficaria verna, silene dioica, lythrum salicaria, humulus lupulus, cardamine pratensis, ribes rubrum, iris pseudacorus, alnus incana, epilobium hirsutum, quercus rubra, impatiens glandulifera, corylus avellana, prunus serotina, galanthus nivalis, crataegus monogyna, juncus effusus, lycopus europaeus, potentilla indica, geum urbanum, eupatorium cannabinum, equisetum arvense, aegopodium podagraria, persicaria hydropiper, cirsium oleraceum, solanum dulcamara, anthriscus sylvestris