urtica dioica, alnus glutinosa, glechoma hederacea, ficaria verna, fraxinus excelsior, populus canadensis, sambucus nigra, angelica sylvestris, betula pendula, filipendula ulmaria, heracleum sphondylium, iris pseudacorus, lonicera periclymenum, prunus serotina, quercus robur, rumex obtusifolius, sorbus aucuparia, viburnum opulus