be, arr. nivelles, castanea sativa, quercus robur, hedera helix, fagus sylvatica, corylus avellana, carpinus betulus, geranium macrorrhizum, acer pseudoplatanus, ilex aquifolium, betula pendula, lonicera periclymenum, teucrium scorodonia, hyacinthoides non-scripta, fraxinus excelsior, calluna vulgaris, cymbalaria muralis, prunus avium, sambucus nigra, sorbus aucuparia, prunella vulgaris, lamium galeobdolon, pteridium aquilinum, arum maculatum, euphorbia lathyris, cornus sanguinea, ribes rubrum, vinca minor, mespilus germanica, polygonatum multiflorum, papaver somniferum, cotoneaster franchetii, epipactis helleborine, hibiscus syriacus, convallaria majalis, heracleum sphondylium, arum italicum, ajuga reptans, eupatorium cannabinum, cytisus scoparius, nigella damascena, viburnum opulus, glechoma hederacea, avenella flexuosa, salix caprea, lapsana communis, silene coronaria, frangula alnus, geranium pyrenaicum, anemone nemorosa, ranunculus repens