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