be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, potentilla indica, silene coronaria, rhododendron ponticum, amelanchier lamarckii, quercus robur, galinsoga quadriradiata, sorbus aucuparia, pilosella aurantiaca, phytolacca acinosa, robinia pseudoacacia, oxalis corniculata, pinus sylvestris, juncus tenuis, oxalis stricta, lonicera periclymenum, betula pendula, lepidium didymum, claytonia perfoliata, acer pseudoplatanus, echinochloa crus-galli, viola wittrockiana, erigeron sumatrensis, frangula alnus, geum macrophyllum, lathyrus latifolius, symphoricarpos albus, geranium macrorrhizum, fagus sylvatica, sambucus nigra, corylus avellana, bidens frondosa, pentaglottis sempervirens, erigeron canadensis, dryopteris dilatata, molinia caerulea, lamium galeobdolon, geranium pyrenaicum, vaccinium myrtillus, teucrium scorodonia, epilobium ciliatum, ilex aquifolium, veronica persica, lepidium virginicum, arum italicum, pinus nigra, cymbalaria muralis, setaria helvola