be, arr. leuven, populus canadensis, urtica dioica, symphytum officinale, glechoma hederacea, quercus robur, cirsium arvense, heracleum sphondylium, galium aparine, angelica sylvestris, calystegia sepium, phragmites australis, crataegus monogyna, fraxinus excelsior, sambucus nigra, filipendula ulmaria, arrhenatherum elatius, galeopsis tetrahit, ranunculus repens, poa trivialis, alnus glutinosa, holcus lanatus, phalaris arundinacea, rubus caesius, ribes rubrum, alopecurus pratensis, humulus lupulus, geum urbanum, corylus avellana, acer pseudoplatanus, iris pseudacorus, eupatorium cannabinum, lythrum salicaria, anthriscus sylvestris, dactylis glomerata, cirsium palustre, solanum dulcamara, silene dioica, viburnum opulus, equisetum arvense, epilobium hirsutum, alnus incana, juncus effusus, lycopus europaeus, lysimachia vulgaris, ficaria verna, betula pendula, rumex obtusifolius, elymus repens, valeriana officinalis, salix caprea