be, arr. leuven, fraxinus excelsior, sambucus nigra, urtica dioica, corylus avellana, quercus robur, glechoma hederacea, acer pseudoplatanus, alnus glutinosa, galium aparine, hedera helix, geum urbanum, arum maculatum, circaea lutetiana, crataegus monogyna, ribes rubrum, prunus avium, ficaria verna, carpinus betulus, heracleum sphondylium, viburnum opulus, humulus lupulus, cornus sanguinea, filipendula ulmaria, symphytum officinale, angelica sylvestris, stachys sylvatica, galeopsis tetrahit, ranunculus repens, lamium galeobdolon, ulmus minor, athyrium filix-femina, poa trivialis, rubus caesius, populus canadensis, geranium robertianum, primula elatior, calystegia sepium, fagus sylvatica, anemone nemorosa, lonicera periclymenum, polygonatum multiflorum, rumex sanguineus, silene dioica, cardamine pratensis, solanum dulcamara, euonymus europaeus, castanea sativa, scrophularia nodosa, acer campestre, prunus padus