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