nl, oost-zuid-holland, lolium perenne, ranunculus repens, trifolium repens, poa trivialis, agrostis stolonifera, holcus lanatus, stellaria media, poa annua, rumex acetosa, alopecurus geniculatus, elymus repens, dactylis glomerata, ranunculus acris, cerastium holosteoides, glyceria fluitans, alopecurus pratensis, phalaris arundinacea, polygonum aviculare, cardamine pratensis, bromus hordeaceus, cirsium arvense, poa pratensis, capsella bursa-pastoris, phleum pratense, plantago major, bellis perennis, glechoma hederacea, rumex obtusifolius, persicaria amphibia, persicaria hydropiper, festuca rubra, juncus articulatus, glyceria maxima, anthoxanthum odoratum, juncus effusus, ranunculus sceleratus, lolium pratense, urtica dioica, rumex crispus, myosotis scorpioides, argentina anserina, galium palustre, oenanthe fistulosa, agrostis capillaris, sagina procumbens, plantago lanceolata, stellaria alsine, ceratophyllum demersum, rorippa amphibia, sparganium erectum