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