symphyotrichum ciliatum, achillea collina, agrostis stolonifera, amaranthus albus, ambrosia artemisiifolia, arctium lappa, artemisia annua, bromus commutatus, centaurea diffusa, chenopodium album, cichorium intybus, cirsium arvense, daucus carota, dysphania botrys, elymus repens, eragrostis minor, erigeron canadensis, fallopia convolvulus, galinsoga parviflora, inula britannica, lepidium ruderale, lepidium virginicum, lolium perenne, lotus tenuis, medicago lupulina, melilotus officinalis, poa annua, polygonum aviculare, setaria pumila, tripleurospermum inodorum, xanthium strumarium