be, arr. nivelles, potentilla indica, castanea sativa, arum italicum, geranium macrorrhizum, cymbalaria muralis, hedera helix, acer pseudoplatanus, oxalis corniculata, geranium pyrenaicum, carpinus betulus, sambucus nigra, phytolacca acinosa, arum maculatum, corylus avellana, fraxinus excelsior, lathyrus latifolius, pentaglottis sempervirens, galanthus nivalis, pseudofumaria lutea, lamium galeobdolon, galinsoga quadriradiata, heracleum sphondylium, hyacinthoides non-scripta, veronica persica, juglans regia, aesculus hippocastanum, rhododendron ponticum, fagus sylvatica, silene coronaria, quercus rubra, erigeron sumatrensis, geranium phaeum, glechoma hederacea, hypericum androsaemum, prunus avium, pilosella aurantiaca, allium ursinum, geranium nodosum, quercus robur, ilex aquifolium, ribes rubrum, symphoricarpos albus, robinia pseudoacacia, euphorbia lathyris, circaea lutetiana, symphytum officinale, cornus sanguinea, urtica dioica, mespilus germanica, vinca minor