nl, agglomeratie leiden en bollenstreek, lolium perenne, agrostis stolonifera, poa trivialis, trifolium repens, elymus repens, ranunculus repens, holcus lanatus, cirsium arvense, dactylis glomerata, bromus hordeaceus, poa pratensis, cerastium holosteoides, ranunculus acris, alopecurus geniculatus, rumex acetosa, poa annua, hordeum secalinum, bellis perennis, plantago lanceolata, festuca rubra, plantago major, phragmites australis, phleum pratense, stellaria media, rumex crispus, scorzoneroides autumnalis, trifolium pratense, polygonum aviculare, argentina anserina, cynosurus cristatus, anthoxanthum odoratum, alopecurus pratensis, persicaria amphibia, achillea millefolium, urtica dioica, agrostis capillaris, lolium pratense, capsella bursa-pastoris, juncus gerardii, bolboschoenus maritimus, arrhenatherum elatius, geranium dissectum, atriplex prostrata, trifolium dubium, glyceria fluitans, carex hirta, trifolium fragiferum, ranunculus sardous, cardamine pratensis, matricaria chamomilla