be, arr. leuven, urtica dioica, symphytum officinale, heracleum sphondylium, phragmites australis, bidens frondosa, calystegia sepium, ranunculus repens, populus canadensis, cirsium arvense, poa trivialis, galium aparine, arrhenatherum elatius, phalaris arundinacea, glechoma hederacea, holcus lanatus, lythrum salicaria, crassula helmsii, iris pseudacorus, filipendula ulmaria, sambucus nigra, epilobium hirsutum, solanum dulcamara, impatiens glandulifera, agrostis stolonifera, crataegus monogyna, galanthus nivalis, glyceria maxima, angelica archangelica, humulus lupulus, alopecurus pratensis, lysimachia vulgaris, persicaria amphibia, anthriscus sylvestris, lycopus europaeus, cardamine pratensis, heracleum mantegazzianum, dactylis glomerata, tanacetum vulgare, alnus glutinosa, quercus robur, lolium multiflorum, stachys palustris, angelica sylvestris, lathyrus latifolius, fraxinus excelsior, rubus caesius, lamium album, equisetum arvense, rumex obtusifolius, elymus repens