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