nl, oost-zuid-holland, lolium perenne, ranunculus repens, agrostis stolonifera, poa trivialis, trifolium repens, alopecurus geniculatus, holcus lanatus, stellaria media, poa annua, glyceria fluitans, elymus repens, rumex acetosa, ranunculus acris, alopecurus pratensis, cerastium holosteoides, phleum pratense, persicaria amphibia, cardamine pratensis, dactylis glomerata, phalaris arundinacea, bromus hordeaceus, poa pratensis, bellis perennis, cirsium arvense, glyceria maxima, ranunculus sceleratus, persicaria hydropiper, polygonum aviculare, capsella bursa-pastoris, glechoma hederacea, plantago major, eleocharis palustris, argentina anserina, lolium pratense, juncus articulatus, rumex obtusifolius, spirodela polyrhiza, rumex crispus, oenanthe fistulosa, elodea nuttallii, myosotis scorpioides, festuca rubra, juncus effusus, anthoxanthum odoratum, agrostis capillaris, scorzoneroides autumnalis, lemna trisulca, carex hirta, rorippa amphibia, urtica dioica