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