malva neglecta, erigeron annuus, erigeron canadensis, galinsoga parviflora, ballota nigra, capsella bursa-pastoris, hordeum murinum, lactuca serriola, lolium perenne, medicago lupulina, oxalis stricta, poa angustifolia, polygonum aviculare, setaria verticillata, solanum decipiens, solidago canadensis, sonchus oleraceus, stellaria media, sambucus nigra