erigeron canadensis, festuca rubra, lactuca serriola, bromus inermis, lappula squarrosa, lolium perenne, poa angustifolia, artemisia campestris, cannabis sativa, centaurea pseudomaculosa, cichorium intybus, convolvulus arvensis, cynoglossum officinale, dracocephalum thymiflorum, lepidium ruderale, silene latifolia, carduus acanthoides, carduus nutans