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