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