be, arr. leuven, quercus robur, urtica dioica, populus canadensis, glechoma hederacea, ranunculus repens, cirsium arvense, fraxinus excelsior, sambucus nigra, holcus lanatus, galium aparine, poa trivialis, phragmites australis, alnus glutinosa, symphytum officinale, acer pseudoplatanus, heracleum sphondylium, crataegus monogyna, arrhenatherum elatius, galeopsis tetrahit, juncus effusus, angelica sylvestris, agrostis capillaris, rubus caesius, betula pendula, prunus serotina, calystegia sepium, phalaris arundinacea, agrostis stolonifera, eupatorium cannabinum, corylus avellana, filipendula ulmaria, dactylis glomerata, lysimachia vulgaris, lycopus europaeus, cirsium palustre, geum urbanum, sorbus aucuparia, quercus rubra, equisetum arvense, iris pseudacorus, lonicera periclymenum, solanum dulcamara, rumex obtusifolius, humulus lupulus, salix caprea, lythrum salicaria, cardamine pratensis, frangula alnus, ribes rubrum, ranunculus acris