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