be, arr. leuven, quercus robur, populus canadensis, urtica dioica, glechoma hederacea, sambucus nigra, angelica sylvestris, fraxinus excelsior, heracleum sphondylium, crataegus monogyna, galium aparine, filipendula ulmaria, alnus glutinosa, ranunculus repens, arrhenatherum elatius, holcus lanatus, poa trivialis, lonicera periclymenum, corylus avellana, cirsium arvense, betula pendula, prunus serotina, galeopsis tetrahit, symphytum officinale, agrostis capillaris, geum urbanum, juncus effusus, sorbus aucuparia, frangula alnus, cirsium palustre, ribes rubrum, acer pseudoplatanus, calystegia sepium, quercus rubra, alopecurus pratensis, humulus lupulus, holcus mollis, phalaris arundinacea, lysimachia vulgaris, phragmites australis, prunus avium, viburnum opulus, ficaria verna, cardamine pratensis, rumex acetosa, moehringia trinervia, betula pubescens, dactylis glomerata, silene dioica, ranunculus acris, lythrum salicaria