eleocharis palustris, rorippa sylvestris, eleocharis uniglumis, mentha arvensis, oenanthe fistulosa, achillea ptarmica, agrostis stolonifera, alopecurus geniculatus, gratiola officinalis, hordeum secalinum, inula britannica, phalaris arundinacea, plantago lanceolata, jacobaea aquatica, plantago major, poa trivialis, potentilla reptans, ranunculus repens