be, arr. leuven, populus canadensis, urtica dioica, filipendula ulmaria, symphytum officinale, angelica sylvestris, quercus robur, heracleum sphondylium, glechoma hederacea, galium aparine, galeopsis tetrahit, alnus glutinosa, sambucus nigra, poa trivialis, ranunculus repens, calystegia sepium, phalaris arundinacea, cirsium arvense, fraxinus excelsior, humulus lupulus, ribes rubrum, arrhenatherum elatius, alopecurus pratensis, phragmites australis, holcus lanatus, crataegus monogyna, iris pseudacorus, cirsium palustre, solanum dulcamara, lythrum salicaria, juncus effusus, cardamine pratensis, ficaria verna, lycopus europaeus, silene dioica, geum urbanum, carex acuta, lysimachia vulgaris, viburnum opulus, corylus avellana, rumex obtusifolius, anthriscus sylvestris, persicaria hydropiper, alnus incana, prunus serotina, acer pseudoplatanus, valeriana excelsa, eupatorium cannabinum, salix cinerea, moehringia trinervia, epilobium hirsutum