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