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