populus canadensis, urtica dioica, glechoma hederacea, alopecurus pratensis, angelica sylvestris, filipendula ulmaria, phalaris arundinacea, agrostis capillaris, argentina anserina, arrhenatherum elatius, equisetum palustre, galeopsis tetrahit, galium uliginosum, holcus lanatus, lathyrus pratensis, lotus pedunculatus, lythrum salicaria, phleum pratense, poa trivialis, ranunculus repens, stellaria graminea, symphytum officinale