nl, agglomeratie leiden en bollenstreek, lolium perenne, poa trivialis, ranunculus repens, agrostis stolonifera, trifolium repens, holcus lanatus, alopecurus geniculatus, elymus repens, cerastium holosteoides, rumex acetosa, stellaria media, ranunculus acris, poa annua, bellis perennis, cardamine pratensis, cirsium arvense, glyceria fluitans, persicaria amphibia, phalaris arundinacea, alopecurus pratensis, plantago major, dactylis glomerata, phleum pratense, poa pratensis, bromus hordeaceus, glyceria maxima, lolium pratense, argentina anserina, eleocharis palustris, rumex obtusifolius, scorzoneroides autumnalis, urtica dioica, rumex crispus, glechoma hederacea, anthoxanthum odoratum, festuca rubra, phragmites australis, carex hirta, juncus articulatus, trifolium pratense, plantago lanceolata, capsella bursa-pastoris, persicaria hydropiper, polygonum aviculare, myosotis scorpioides, cynosurus cristatus, ranunculus sceleratus, galium palustre, juncus effusus, agrostis capillaris