be, arr. leuven, populus canadensis, urtica dioica, cirsium arvense, arrhenatherum elatius, ranunculus repens, symphytum officinale, glechoma hederacea, heracleum sphondylium, poa trivialis, galium aparine, holcus lanatus, angelica sylvestris, filipendula ulmaria, quercus robur, alopecurus pratensis, calystegia sepium, phalaris arundinacea, galeopsis tetrahit, phragmites australis, sambucus nigra, ranunculus acris, juncus effusus, tanacetum vulgare, rumex acetosa, dactylis glomerata, lythrum salicaria, rumex obtusifolius, elymus repens, stellaria graminea, vicia cracca, alnus glutinosa, agrostis capillaris, lathyrus pratensis, crataegus monogyna, fraxinus excelsior, lysimachia vulgaris, lolium perenne, iris pseudacorus, equisetum arvense, cardamine pratensis, lycopus europaeus, cirsium palustre, agrostis stolonifera, cerastium fontanum, rumex crispus, plantago lanceolata, humulus lupulus, eupatorium cannabinum, carex acuta, anthriscus sylvestris