be, arr. leuven, holcus lanatus, ranunculus repens, quercus robur, prunus serotina, rumex acetosa, arrhenatherum elatius, pilosella aurantiaca, heracleum sphondylium, silene coronaria, poa trivialis, quercus rubra, agrostis capillaris, juncus effusus, ranunculus acris, claytonia perfoliata, lolium perenne, urtica dioica, alopecurus pratensis, cardamine pratensis, galinsoga quadriradiata, plantago lanceolata, tanacetum vulgare, lathyrus latifolius, stellaria graminea, potentilla indica, achillea millefolium, cirsium arvense, castanea sativa, trifolium repens, anthoxanthum odoratum, juncus acutiflorus, cerastium fontanum, festuca rubra, oxalis corniculata, angelica sylvestris, lolium multiflorum, filipendula ulmaria, populus canadensis, geranium pyrenaicum, echinochloa crus-galli, phytolacca acinosa, dactylis glomerata, bidens frondosa, juncus tenuis, holcus mollis, rumex obtusifolius, lotus pedunculatus, cirsium palustre, trifolium dubium, alnus glutinosa