be, arr. leuven, castanea sativa, quercus rubra, acer pseudoplatanus, fagus sylvatica, prunus serotina, quercus robur, potentilla indica, sorbus aucuparia, sambucus nigra, corylus avellana, lamium galeobdolon, lonicera periclymenum, hedera helix, ilex aquifolium, dryopteris dilatata, fraxinus excelsior, rhododendron ponticum, robinia pseudoacacia, athyrium filix-femina, circaea lutetiana, betula pendula, carpinus betulus, dryopteris carthusiana, urtica dioica, prunus avium, polygonatum multiflorum, impatiens parviflora, arum maculatum, glechoma hederacea, hyacinthoides non-scripta, anemone nemorosa, convallaria majalis, symphoricarpos albus, vinca minor, pteridium aquilinum, pinus sylvestris, teucrium scorodonia, galanthus nivalis, arum italicum, dryopteris filix-mas, vaccinium myrtillus, allium ursinum, juncus effusus, galeopsis tetrahit, salix caprea, scrophularia nodosa, alnus glutinosa, juncus tenuis, amelanchier lamarckii, mespilus germanica