be, arr. halle-vilvoorde, castanea sativa, quercus robur, hyacinthoides non-scripta, quercus rubra, fagus sylvatica, rhododendron ponticum, corylus avellana, potentilla indica, teucrium scorodonia, carpinus betulus, vinca minor, geranium macrorrhizum, lamium galeobdolon, mespilus germanica, hedera helix, acer pseudoplatanus, epipactis helleborine, euphorbia lathyris, betula pendula, ilex aquifolium, pilosella aurantiaca, arum maculatum, lonicera periclymenum, silene coronaria, plantago subulata, prunus serotina, sorbus aucuparia, phytolacca acinosa, eupatorium cannabinum, ribes rubrum, geranium pyrenaicum, polygonatum multiflorum, lathyrus latifolius, glechoma hederacea, fraxinus excelsior, heracleum sphondylium, aesculus hippocastanum, sorbaria sorbifolia, cosmos bipinnatus, alliaria petiolata, convallaria majalis, arum italicum, symphytum officinale, allium ursinum, alnus glutinosa, prunus avium, galanthus nivalis, cymbalaria muralis, claytonia perfoliata, sambucus nigra