corylus avellana, oxalis acetosella, lamium galeobdolon, populus canadensis, quercus robur, anemone nemorosa, alnus glutinosa, convallaria majalis, dryopteris dilatata, fraxinus excelsior, galeopsis tetrahit, hedera helix, humulus lupulus, polygonatum multiflorum, sorbus aucuparia, urtica dioica