be, arr. leuven, ranunculus repens, holcus lanatus, heracleum sphondylium, urtica dioica, poa trivialis, arrhenatherum elatius, rumex acetosa, alopecurus pratensis, symphytum officinale, cirsium arvense, lolium perenne, filipendula ulmaria, cardamine pratensis, ranunculus acris, juncus effusus, phalaris arundinacea, glechoma hederacea, galium aparine, rumex obtusifolius, agrostis stolonifera, phragmites australis, cerastium fontanum, populus canadensis, agrostis capillaris, tanacetum vulgare, plantago lanceolata, bidens frondosa, calystegia sepium, lythrum salicaria, quercus robur, angelica sylvestris, trifolium repens, dactylis glomerata, iris pseudacorus, prunus serotina, equisetum arvense, alnus glutinosa, persicaria amphibia, elymus repens, lolium multiflorum, stellaria graminea, galinsoga quadriradiata, equisetum palustre, pilosella aurantiaca, trifolium pratense, festuca rubra, lysimachia vulgaris, geranium pyrenaicum, lathyrus latifolius, achillea millefolium