be, arr. leuven, quercus robur, quercus rubra, castanea sativa, prunus serotina, populus canadensis, lonicera periclymenum, ranunculus repens, juncus effusus, pilosella aurantiaca, heracleum sphondylium, corylus avellana, holcus lanatus, angelica sylvestris, sorbus aucuparia, silene coronaria, cardamine pratensis, betula pendula, potentilla indica, agrostis capillaris, cerastium fontanum, frangula alnus, alnus glutinosa, cirsium palustre, urtica dioica, teucrium scorodonia, lathyrus latifolius, acer pseudoplatanus, ranunculus acris, sambucus nigra, fraxinus excelsior, arrhenatherum elatius, poa trivialis, polygonatum multiflorum, galinsoga quadriradiata, filipendula ulmaria, juncus tenuis, rumex acetosa, juncus acutiflorus, stellaria graminea, holcus mollis, molinia caerulea, geranium pyrenaicum, galanthus nivalis, alopecurus pratensis, glechoma hederacea, amelanchier lamarckii, galeopsis tetrahit, rhododendron ponticum, athyrium filix-femina, lamium galeobdolon