hordeum murinum, bromus sterilis, bromus diandrus, atriplex prostrata, centaurea calcitrapa, erigeron canadensis, geranium molle, helminthotheca echioides, lepidium draba, malva parviflora, medicago polymorpha, parapholis incurva, plantago coronopus, poa annua, rubia tinctorum, rumex conglomeratus, sonchus tenerrimus, spergularia rubra, torilis nodosa