digitaria sanguinalis, bromus hordeaceus, eragrostis minor, erodium cicutarium, medicago lupulina, poa angustifolia, polygonum aviculare, veronica persica, arabidopsis thaliana, capsella bursa-pastoris, chaenorhinum minus, chenopodium album, erigeron canadensis, festuca nigrescens, festuca trachyphylla, lolium perenne, lysimachia arvensis, persicaria lapathifolia, poa compressa, rumex acetosella, rumex thyrsiflorus, senecio vulgaris, setaria viridis, sonchus asper, trifolium dubium, trifolium repens, vicia hirsuta