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