nl, agglomeratie leiden en bollenstreek, lolium perenne, ranunculus repens, agrostis stolonifera, poa trivialis, trifolium repens, holcus lanatus, dactylis glomerata, elymus repens, cirsium arvense, ranunculus acris, cerastium holosteoides, rumex acetosa, poa annua, stellaria media, urtica dioica, poa pratensis, persicaria amphibia, plantago major, plantago lanceolata, polygonum aviculare, phleum pratense, bellis perennis, glechoma hederacea, phalaris arundinacea, festuca rubra, alopecurus geniculatus, argentina anserina, trifolium pratense, rumex obtusifolius, alopecurus pratensis, bromus hordeaceus, rumex crispus, phragmites australis, capsella bursa-pastoris, achillea millefolium, arrhenatherum elatius, glyceria fluitans, scorzoneroides autumnalis, heracleum sphondylium, anthriscus sylvestris, carex hirta, cardamine pratensis, agrostis capillaris, glyceria maxima, equisetum arvense, lamium album, anthoxanthum odoratum, cynosurus cristatus, ranunculus sceleratus, epilobium hirsutum