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