nl, utrecht, agrostis stolonifera, ranunculus repens, lolium perenne, poa trivialis, elymus repens, trifolium repens, holcus lanatus, ranunculus acris, persicaria amphibia, rumex acetosa, glyceria maxima, dactylis glomerata, glyceria fluitans, alopecurus pratensis, stellaria media, glechoma hederacea, cerastium holosteoides, spirodela polyrhiza, poa annua, phragmites australis, cirsium arvense, phalaris arundinacea, alopecurus geniculatus, elodea nuttallii, lemna trisulca, phleum pratense, urtica dioica, polygonum aviculare, cardamine pratensis, bellis perennis, poa pratensis, festuca rubra, ceratophyllum demersum, sparganium erectum, plantago lanceolata, lemna gibba, argentina anserina, butomus umbellatus, plantago major, capsella bursa-pastoris, trifolium pratense, bromus hordeaceus, rumex obtusifolius, ranunculus sceleratus, anthriscus sylvestris, arrhenatherum elatius, scorzoneroides autumnalis, anthoxanthum odoratum, heracleum sphondylium, agrostis capillaris