text: populus canadensis, crataegus monogyna, fraxinus excelsior, quercus robur, ulmus minor, geum urbanum, oxyrrhynchium hians, rubus caesius, acer pseudoplatanus, fissidens taxifolius, ficaria verna, viola riviniana, alliaria petiolata, arum maculatum, cardamine pratensis, circaea lutetiana, filipendula ulmaria, glechoma hederacea, ribes rubrum, symphytum officinale, valeriana officinalis, cornus sanguinea, galium aparine, humulus lupulus, prunus spinosa, viburnum opulus