text: quercus robur, acer pseudoplatanus, circaea lutetiana, sambucus nigra, hedera helix, fraxinus excelsior, acer negundo, acer platanoides, alliaria petiolata, cornus sanguinea, crataegus monogyna, dryopteris filix-mas, euonymus europaeus, ficaria verna, galanthus nivalis, geranium robertianum, urtica dioica, veronica hederifolia