mercurialis perennis, corylus avellana, populus canadensis, fraxinus excelsior, alnus glutinosa, allium ursinum, brachythecium rutabulum, kindbergia praelonga, prunus spinosa, anemone nemorosa, arum maculatum, ficaria verna, hedera helix, lamium galeobdolon, plagiomnium undulatum, primula elatior, thamnobryum alopecurum, urtica dioica, vinca minor