populus canadensis, urtica dioica, galeopsis tetrahit, angelica sylvestris, galium aparine, glechoma hederacea, filipendula ulmaria, heracleum sphondylium, symphytum officinale, arrhenatherum elatius, epipactis helleborine, frangula alnus, fraxinus excelsior, glyceria maxima, humulus lupulus, quercus robur, sambucus nigra