be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, acer pseudoplatanus, potentilla indica, quercus robur, fagus sylvatica, sorbus aucuparia, robinia pseudoacacia, amelanchier lamarckii, rhododendron ponticum, lonicera periclymenum, pinus sylvestris, betula pendula, silene coronaria, corylus avellana, lamium galeobdolon, hedera helix, ilex aquifolium, juncus tenuis, sambucus nigra, symphoricarpos albus, teucrium scorodonia, polygonatum multiflorum, convallaria majalis, mespilus germanica, impatiens parviflora, prunus avium, dryopteris dilatata, hyacinthoides non-scripta, fraxinus excelsior, carpinus betulus, vaccinium myrtillus, frangula alnus, oxalis stricta, galinsoga quadriradiata, pteridium aquilinum, avenella flexuosa, geum macrophyllum, dryopteris carthusiana, glechoma hederacea, urtica dioica, vinca minor, deschampsia flexuosa, carex pilulifera, epipactis helleborine, arum italicum, pilosella aurantiaca, galanthus nivalis, phytolacca acinosa