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