corylus avellana, populus canadensis, mercurialis perennis, allium ursinum, alnus glutinosa, anemone nemorosa, ficaria verna, hedera helix, lamium galeobdolon, polygonatum multiflorum, ulmus minor, acer pseudoplatanus, aegopodium podagraria, arum maculatum, circaea lutetiana, geum urbanum, kindbergia praelonga, primula elatior, urtica dioica