text: quercus petraea, acer campestre, helleborus viridis, cornus sanguinea, crataegus monogyna, hepatica nobilis, prunus avium, viola odorata, aegopodium podagraria, clematis vitalba, dioscorea communis, euonymus europaeus, lonicera xylosteum, mespilus germanica, primula vulgaris, prunus spinosa, sambucus nigra, ulmus minor, viburnum lantana, viola reichenbachiana, alliaria petiolata, glechoma hederacea