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