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