amaranthus retroflexus, convolvulus arvensis, setaria pumila, lolium perenne, achillea collina, digitaria sanguinalis, hordeum murinum, portulaca oleracea, bromus hordeaceus, elymus repens, erigeron canadensis, glechoma hederacea, sonchus asper, tripleurospermum inodorum, lamium album, malva neglecta, plantago media