be, arr. leuven, holcus lanatus, quercus robur, ranunculus repens, arrhenatherum elatius, urtica dioica, heracleum sphondylium, poa trivialis, agrostis capillaris, prunus serotina, quercus rubra, castanea sativa, lolium perenne, juncus effusus, rumex acetosa, silene coronaria, cirsium arvense, galinsoga quadriradiata, pilosella aurantiaca, dactylis glomerata, galium aparine, glechoma hederacea, ranunculus acris, sambucus nigra, alopecurus pratensis, lathyrus latifolius, cardamine pratensis, populus canadensis, geranium pyrenaicum, veronica persica, trifolium repens, rumex obtusifolius, agrostis stolonifera, alnus glutinosa, claytonia perfoliata, tanacetum vulgare, achillea millefolium, echinochloa crus-galli, plantago lanceolata, stellaria media, symphytum officinale, festuca rubra, holcus mollis, corylus avellana, filipendula ulmaria, anthoxanthum odoratum, elymus repens, cerastium fontanum, angelica sylvestris, potentilla indica, galeopsis tetrahit