poa trivialis, agrostis stolonifera, glyceria fluitans, alopecurus geniculatus, elymus repens, phalaris arundinacea, ranunculus repens, trifolium repens, argentina anserina, eleocharis palustris, persicaria hydropiper, physcomitrium pyriforme, plantago major, ranunculus sceleratus, stellaria media, triglochin palustris, bidens cernuus, cerastium holosteoides, cirsium arvense, plantago uliginosa, polygonum aviculare