quercus robur, ulmus laevis, crataegus laevigata, glechoma hederacea, impatiens parviflora, urtica dioica, calamagrostis canescens, circaea lutetiana, equisetum arvense, galeopsis bifida, prunus spinosa, rubus caesius, silene baccifera, galium aparine, humulus lupulus, phalaris arundinacea, ulmus minor