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