text: xanthium albinum, agrostis stolonifera, inula britannica, bolboschoenus glaucus, echinochloa crus-galli, thalictrum flavum, stachys palustris, calystegia sepium, cuscuta campestris, fraxinus pennsylvanica, phalaris arundinacea, plantago uliginosa, rorippa palustris, rumex stenophyllus, scutellaria galericulata, sparganium erectum