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