be, arr. leuven, prunus serotina, quercus rubra, quercus robur, potentilla indica, sorbus aucuparia, castanea sativa, urtica dioica, acer pseudoplatanus, amelanchier lamarckii, rhododendron ponticum, glechoma hederacea, sambucus nigra, juncus tenuis, corylus avellana, robinia pseudoacacia, populus canadensis, betula pendula, alnus glutinosa, symphoricarpos albus, fraxinus excelsior, pinus sylvestris, lonicera periclymenum, galanthus nivalis, dryopteris dilatata, lamium galeobdolon, frangula alnus, geum macrophyllum, dryopteris carthusiana, ribes rubrum, ranunculus repens, bidens frondosa, geum urbanum, poa trivialis, alnus incana, galium aparine, impatiens parviflora, polygonatum multiflorum, prunus padus, fagus sylvatica, juncus effusus, silene dioica, galeopsis tetrahit, ficaria verna, hedera helix, athyrium filix-femina, agrostis capillaris, holcus lanatus, humulus lupulus, epilobium ciliatum, silene coronaria