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