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