text: ambrosia artemisiifolia, ambrosia trifida, anthriscus caucalis, arctium lappa, artemisia vulgaris, bassia scoparia, bromus tectorum, cannabis sativa, capsella bursa-pastoris, chenopodium album, crepis foetida, descurainia sophia, erigeron canadensis, fallopia convolvulus, hordeum murinum, lathyrus tuberosus, sisymbrium loeselii, sorghum halepense, viola arvensis