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