be, arr. leuven, quercus robur, populus canadensis, holcus lanatus, urtica dioica, ranunculus repens, heracleum sphondylium, poa trivialis, arrhenatherum elatius, glechoma hederacea, alopecurus pratensis, galium aparine, filipendula ulmaria, cirsium arvense, angelica sylvestris, galeopsis tetrahit, rumex acetosa, agrostis capillaris, ranunculus acris, sambucus nigra, fraxinus excelsior, alnus glutinosa, dactylis glomerata, juncus effusus, prunus serotina, phalaris arundinacea, holcus mollis, symphytum officinale, crataegus monogyna, rumex obtusifolius, stellaria graminea, corylus avellana, cardamine pratensis, cirsium palustre, humulus lupulus, ficaria verna, elymus repens, quercus rubra, lolium perenne, tanacetum vulgare, agrostis stolonifera, silene dioica, lonicera periclymenum, festuca rubra, calystegia sepium, anthriscus sylvestris, sorbus aucuparia, betula pendula, cerastium holosteoides, geum urbanum, anthoxanthum odoratum