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