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