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