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