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