text: quercus robur, betula pendula, prunus serotina, frangula alnus, lonicera periclymenum, quercus rubra, sorbus aucuparia, fagus sylvatica, ilex aquifolium, vaccinium myrtillus, hedera helix, quercus petraea, convallaria majalis, polygonatum multiflorum, polypodium vulgare