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