be, arr. leuven, quercus robur, populus canadensis, urtica dioica, holcus lanatus, arrhenatherum elatius, ranunculus repens, cirsium arvense, glechoma hederacea, heracleum sphondylium, galeopsis tetrahit, angelica sylvestris, alnus glutinosa, prunus serotina, sambucus nigra, filipendula ulmaria, agrostis capillaris, poa trivialis, galium aparine, betula pendula, juncus effusus, alopecurus pratensis, phalaris arundinacea, crataegus monogyna, symphytum officinale, phragmites australis, quercus rubra, rumex acetosa, cirsium palustre, fraxinus excelsior, calystegia sepium, lonicera periclymenum, lysimachia vulgaris, sorbus aucuparia, corylus avellana, stellaria graminea, tanacetum vulgare, ranunculus acris, cardamine pratensis, frangula alnus, dactylis glomerata, iris pseudacorus, ribes rubrum, lycopus europaeus, hypericum perforatum, humulus lupulus, solanum dulcamara, elymus repens, lythrum salicaria, equisetum arvense, holcus mollis