be, arr. leuven, populus canadensis, urtica dioica, quercus robur, galium aparine, glechoma hederacea, fraxinus excelsior, sambucus nigra, filipendula ulmaria, heracleum sphondylium, angelica sylvestris, alnus glutinosa, symphytum officinale, galeopsis tetrahit, humulus lupulus, poa trivialis, crataegus monogyna, ribes rubrum, phalaris arundinacea, calystegia sepium, ranunculus repens, silene dioica, corylus avellana, ficaria verna, geum urbanum, solanum dulcamara, cirsium arvense, phragmites australis, iris pseudacorus, acer pseudoplatanus, viburnum opulus, lythrum salicaria, cirsium palustre, holcus lanatus, lycopus europaeus, lysimachia vulgaris, alnus incana, circaea lutetiana, cardamine pratensis, juncus effusus, arrhenatherum elatius, stachys sylvatica, athyrium filix-femina, moehringia trinervia, anthriscus sylvestris, alopecurus pratensis, prunus avium, lonicera periclymenum, sorbus aucuparia, rubus caesius, geranium robertianum