be, arr. leuven, quercus robur, populus canadensis, urtica dioica, prunus serotina, quercus rubra, alnus glutinosa, filipendula ulmaria, sambucus nigra, galium aparine, ranunculus repens, holcus lanatus, juncus effusus, angelica sylvestris, heracleum sphondylium, poa trivialis, glechoma hederacea, phalaris arundinacea, sorbus aucuparia, galeopsis tetrahit, lysimachia vulgaris, humulus lupulus, alnus incana, fraxinus excelsior, cirsium arvense, betula pendula, agrostis capillaris, arrhenatherum elatius, corylus avellana, symphytum officinale, alopecurus pratensis, iris pseudacorus, cirsium palustre, phragmites australis, lycopus europaeus, frangula alnus, impatiens glandulifera, amelanchier lamarckii, bidens frondosa, prunus padus, dryopteris carthusiana, solanum dulcamara, ribes rubrum, calystegia sepium, acer pseudoplatanus, holcus mollis, cardamine pratensis, lythrum salicaria, robinia pseudoacacia, lonicera periclymenum, rumex obtusifolius