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