be, arr. leuven, heracleum sphondylium, urtica dioica, symphytum officinale, ranunculus repens, arrhenatherum elatius, cirsium arvense, holcus lanatus, poa trivialis, calystegia sepium, galium aparine, populus canadensis, lolium perenne, glechoma hederacea, phalaris arundinacea, alopecurus pratensis, phragmites australis, angelica sylvestris, lythrum salicaria, filipendula ulmaria, ranunculus acris, agrostis stolonifera, rumex acetosa, dactylis glomerata, tanacetum vulgare, cerastium fontanum, rumex obtusifolius, epilobium hirsutum, plantago lanceolata, eupatorium cannabinum, trifolium repens, geranium pyrenaicum, lathyrus latifolius, galeopsis tetrahit, cardamine pratensis, quercus robur, sambucus nigra, juncus effusus, melilotus albus, elymus repens, lathyrus pratensis, lycopus europaeus, achillea millefolium, anthriscus sylvestris, iris pseudacorus, equisetum arvense, rumex crispus, festuca rubra, trifolium pratense, lolium multiflorum, bidens frondosa