be, arr. leuven, heracleum sphondylium, symphytum officinale, ranunculus repens, urtica dioica, populus canadensis, arrhenatherum elatius, glechoma hederacea, poa trivialis, holcus lanatus, alopecurus pratensis, cirsium arvense, filipendula ulmaria, phalaris arundinacea, angelica sylvestris, galium aparine, phragmites australis, calystegia sepium, ranunculus acris, rumex obtusifolius, lolium perenne, rumex acetosa, cardamine pratensis, lythrum salicaria, dactylis glomerata, iris pseudacorus, persicaria amphibia, juncus effusus, agrostis stolonifera, alnus glutinosa, quercus robur, galeopsis tetrahit, fraxinus excelsior, tanacetum vulgare, equisetum arvense, plantago lanceolata, anthriscus sylvestris, lathyrus pratensis, cerastium fontanum, trifolium repens, carex acuta, elymus repens, impatiens glandulifera, sambucus nigra, epilobium hirsutum, equisetum palustre, ficaria verna, trifolium pratense, agrostis capillaris, lycopus europaeus, cirsium palustre