nl, agglomeratie leiden en bollenstreek, phragmites australis, poa trivialis, phalaris arundinacea, urtica dioica, ranunculus repens, glyceria maxima, holcus lanatus, agrostis stolonifera, epilobium hirsutum, calystegia sepium, iris pseudacorus, persicaria amphibia, rumex acetosa, cirsium arvense, symphytum officinale, cardamine pratensis, valeriana officinalis, glechoma hederacea, carex riparia, galium aparine, angelica sylvestris, lythrum salicaria, galium palustre, filipendula ulmaria, alopecurus pratensis, lolium perenne, caltha palustris, solanum dulcamara, elymus repens, ranunculus acris, lycopus europaeus, juncus effusus, dactylis glomerata, cirsium palustre, cerastium holosteoides, eupatorium cannabinum, glyceria fluitans, stachys palustris, carex acuta, rumex hydrolapathum, trifolium repens, myosotis scorpioides, anthriscus sylvestris, heracleum sphondylium, rumex obtusifolius, festuca rubra, carex disticha, silene flos-cuculi, stellaria media, arrhenatherum elatius