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