be, arr. tongeren, quercus robur, fraxinus excelsior, corylus avellana, acer pseudoplatanus, sambucus nigra, hedera helix, lonicera periclymenum, urtica dioica, heracleum sphondylium, prunus avium, galium aparine, geum urbanum, glechoma hederacea, polygonatum multiflorum, crataegus monogyna, betula pendula, sorbus aucuparia, arum maculatum, adoxa moschatellina, cornus sanguinea, ranunculus repens, poa trivialis, fagus sylvatica, carpinus betulus, holcus lanatus, primula elatior, salix caprea, lamium galeobdolon, anemone nemorosa, dryopteris filix-mas, cirsium arvense, stachys sylvatica, silene dioica, circaea lutetiana, geranium robertianum, ficaria verna, castanea sativa, galeopsis tetrahit, ulmus minor, athyrium filix-femina, angelica sylvestris, dactylis glomerata, viburnum opulus, betula pubescens, arrhenatherum elatius, moehringia trinervia, carex sylvatica, alnus glutinosa, dryopteris carthusiana, populus tremula