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