be, arr. leuven, quercus robur, fraxinus excelsior, corylus avellana, sambucus nigra, hedera helix, urtica dioica, acer pseudoplatanus, galium aparine, lonicera periclymenum, crataegus monogyna, glechoma hederacea, prunus avium, alnus glutinosa, geum urbanum, fagus sylvatica, heracleum sphondylium, polygonatum multiflorum, carpinus betulus, sorbus aucuparia, betula pendula, galeopsis tetrahit, arum maculatum, ficaria verna, anemone nemorosa, poa trivialis, stachys sylvatica, viburnum opulus, cornus sanguinea, ribes rubrum, circaea lutetiana, dryopteris carthusiana, lamium galeobdolon, dryopteris filix-mas, athyrium filix-femina, prunus spinosa, humulus lupulus, frangula alnus, geranium robertianum, poa nemoralis, moehringia trinervia, holcus mollis, ulmus minor, ranunculus repens, adoxa moschatellina, populus tremula, castanea sativa, cirsium arvense, ilex aquifolium, euonymus europaeus, quercus rubra