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