be, arr. leuven, populus canadensis, arrhenatherum elatius, quercus robur, heracleum sphondylium, ranunculus repens, filipendula ulmaria, cirsium arvense, alopecurus pratensis, holcus lanatus, urtica dioica, angelica sylvestris, glechoma hederacea, symphytum officinale, poa trivialis, ranunculus acris, rumex acetosa, galeopsis tetrahit, galium aparine, agrostis capillaris, phalaris arundinacea, stellaria graminea, juncus effusus, calystegia sepium, cirsium palustre, phragmites australis, alnus glutinosa, tanacetum vulgare, crataegus monogyna, vicia cracca, lathyrus pratensis, cardamine pratensis, centaurea jacea, lythrum salicaria, lysimachia vulgaris, carex acuta, dactylis glomerata, fraxinus excelsior, sambucus nigra, iris pseudacorus, plantago lanceolata, silene flos-cuculi, festuca rubra, equisetum arvense, achillea millefolium, anthoxanthum odoratum, cerastium fontanum, lolium perenne, cerastium holosteoides, equisetum palustre, elymus repens