be, arr. leuven, acer pseudoplatanus, urtica dioica, quercus robur, fraxinus excelsior, sambucus nigra, alnus glutinosa, corylus avellana, glechoma hederacea, sorbus aucuparia, athyrium filix-femina, quercus rubra, fagus sylvatica, lonicera periclymenum, prunus serotina, galium aparine, poa trivialis, ranunculus repens, populus canadensis, circaea lutetiana, juncus effusus, geum urbanum, hedera helix, betula pendula, dryopteris carthusiana, eupatorium cannabinum, castanea sativa, dryopteris dilatata, lamium galeobdolon, galeopsis tetrahit, silene dioica, solanum dulcamara, angelica sylvestris, filipendula ulmaria, anemone nemorosa, ficaria verna, alnus incana, humulus lupulus, polygonatum multiflorum, lycopus europaeus, heracleum sphondylium, cardamine pratensis, crataegus monogyna, salix caprea, holcus lanatus, viburnum opulus, geranium robertianum, prunus avium, stachys sylvatica, ribes rubrum, arum maculatum