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