cirsium arvense, chenopodium album, elymus repens, equisetum arvense, amaranthus retroflexus, convolvulus arvensis, amaranthus powellii, chaenorhinum minus, euphorbia helioscopia, galinsoga parviflora, lysimachia arvensis, mercurialis annua, persicaria lapathifolia, sinapis arvensis, tripleurospermum maritimum, veronica persica