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