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