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