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