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