amaranthus powellii, lactuca serriola, amaranthus retroflexus, ballota nigra, bromus tectorum, capsella bursa-pastoris, chenopodium album, cirsium arvense, digitaria sanguinalis, echinochloa crus-galli, elymus repens, erigeron canadensis, hibiscus trionum, lathyrus tuberosus, melilotus officinalis, polygonum aviculare, rumex crispus, setaria verticillata, sonchus arvensis, stellaria media