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