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