nl, agglomeratie leiden en bollenstreek, elymus repens, achillea millefolium, plantago lanceolata, dactylis glomerata, agrostis capillaris, lolium perenne, poa annua, poa pratensis, festuca rubra, plantago major, trifolium repens, ranunculus repens, rumex acetosella, chenopodium album, glechoma hederacea, poa trivialis, cirsium arvense, urtica dioica, equisetum arvense, holcus lanatus, agrostis stolonifera, artemisia vulgaris, arrhenatherum elatius, capsella bursa-pastoris, rumex angiocarpus, rumex acetosa, bromus hordeaceus, polygonum aviculare, erodium cicutarium, stellaria media, convolvulus arvensis, hypochaeris radicata, fallopia convolvulus, trifolium arvense, argentina anserina, cerastium holosteoides, erigeron canadensis, persicaria amphibia, claytonia perfoliata, veronica arvensis, scorzoneroides autumnalis, carex hirta, tanacetum vulgare, trifolium dubium, rubus caesius, phalaris arundinacea, corynephorus canescens, vicia sativa, potentilla reptans, phragmites australis