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