nl, delft en westland, trifolium repens, ranunculus repens, agrostis stolonifera, poa trivialis, lolium perenne, poa annua, alopecurus geniculatus, stellaria media, elymus repens, holcus lanatus, glyceria fluitans, ranunculus acris, phleum pratense, rumex acetosa, cerastium holosteoides, ranunculus sceleratus, persicaria hydropiper, polygonum aviculare, phalaris arundinacea, alopecurus pratensis, plantago major, poa pratensis, eleocharis palustris, cirsium arvense, dactylis glomerata, juncus articulatus, persicaria amphibia, cardamine pratensis, capsella bursa-pastoris, bellis perennis, argentina anserina, myosotis scorpioides, bromus hordeaceus, glyceria maxima, rumex crispus, oenanthe fistulosa, rumex obtusifolius, stellaria alsine, bolboschoenus maritimus, carex hirta, triglochin palustris, lolium pratense, glechoma hederacea, sagina procumbens, sparganium erectum, scorzoneroides autumnalis, galium palustre, agrostis capillaris, rorippa amphibia, elodea nuttallii