nl, agglomeratie leiden en bollenstreek, poa trivialis, ranunculus repens, agrostis stolonifera, holcus lanatus, phragmites australis, phalaris arundinacea, lolium perenne, rumex acetosa, persicaria amphibia, trifolium repens, elymus repens, cirsium arvense, ranunculus acris, glyceria maxima, cardamine pratensis, cerastium holosteoides, urtica dioica, glyceria fluitans, dactylis glomerata, alopecurus pratensis, glechoma hederacea, galium palustre, festuca rubra, alopecurus geniculatus, bellis perennis, plantago lanceolata, stellaria media, epilobium hirsutum, iris pseudacorus, carex riparia, argentina anserina, juncus effusus, calystegia sepium, anthoxanthum odoratum, poa annua, silene flos-cuculi, carex disticha, symphytum officinale, poa pratensis, trifolium pratense, plantago major, myosotis scorpioides, lolium pratense, phleum pratense, valeriana officinalis, rumex crispus, lythrum salicaria, cirsium palustre, rumex obtusifolius, bromus hordeaceus