be, arr. leuven, castanea sativa, quercus rubra, potentilla indica, prunus serotina, silene coronaria, pilosella aurantiaca, quercus robur, acer pseudoplatanus, phytolacca acinosa, sorbus aucuparia, galinsoga quadriradiata, robinia pseudoacacia, fagus sylvatica, oxalis corniculata, rhododendron ponticum, lathyrus latifolius, corylus avellana, lonicera periclymenum, amelanchier lamarckii, symphoricarpos albus, geranium macrorrhizum, sambucus nigra, geranium pyrenaicum, erigeron sumatrensis, lamium galeobdolon, juncus tenuis, pinus sylvestris, betula pendula, oxalis stricta, arum italicum, hedera helix, lepidium didymum, viola wittrockiana, ilex aquifolium, teucrium scorodonia, fraxinus excelsior, echinochloa crus-galli, veronica persica, claytonia perfoliata, prunus avium, mespilus germanica, urtica dioica, convallaria majalis, epipactis helleborine, galanthus nivalis, glechoma hederacea, erigeron canadensis, pentaglottis sempervirens, galeopsis tetrahit, epilobium ciliatum