be, arr. leuven, urtica dioica, heracleum sphondylium, ranunculus repens, holcus lanatus, poa trivialis, cirsium arvense, arrhenatherum elatius, glechoma hederacea, galium aparine, populus canadensis, alopecurus pratensis, symphytum officinale, dactylis glomerata, filipendula ulmaria, lolium perenne, phalaris arundinacea, calystegia sepium, elymus repens, rumex acetosa, ranunculus acris, rumex obtusifolius, angelica sylvestris, anthriscus sylvestris, galeopsis tetrahit, phragmites australis, quercus robur, tanacetum vulgare, agrostis stolonifera, sambucus nigra, agrostis capillaris, plantago lanceolata, festuca rubra, alnus glutinosa, equisetum arvense, fraxinus excelsior, achillea millefolium, juncus effusus, trifolium repens, persicaria amphibia, cardamine pratensis, cerastium holosteoides, phleum pratense, vicia cracca, humulus lupulus, crataegus monogyna, stellaria media, iris pseudacorus, rumex crispus, aegopodium podagraria, lythrum salicaria