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