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