fr, pas-de-calais, bidens frondosa, crassula helmsii, claytonia perfoliata, pilosella aurantiaca, prunus serotina, anchusa officinalis, ludwigia grandiflora, oenothera glazioviana, potentilla recta, silene coronaria, melilotus albus, lathyrus latifolius, nicandra physalodes, lythrum salicaria, mahonia aquifolium, myriophyllum aquaticum, galanthus nivalis, angelica archangelica, vicia villosa, lepidium didymum, lunaria annua, matricaria discoidea, datura stramonium, lycopus europaeus, echinochloa crus-galli, ribes sanguineum, berteroa incana, geranium pyrenaicum, juncus tenuis, stachys palustris, galinsoga quadriradiata, verbena bonariensis, mentha aquatica, amelanchier lamarckii, nymphaea marliacea, heracleum mantegazzianum, onopordum acanthium, solidago gigantea, erigeron sumatrensis, erodium cicutarium, armoracia rusticana, epilobium ciliatum, dianthus deltoides, oenothera deflexa, eupatorium cannabinum, lysimachia vulgaris, oxalis corniculata, sorbaria sorbifolia, iris pseudacorus, achillea ptarmica