amsinckia menziesii, chenopodium album, erodium cicutarium, spergula arvensis, lycopsis arvensis, solanum nigrum, stellaria media, trifolium resupinatum, capsella bursa-pastoris, cirsium arvense, digitaria ischaemum, elymus repens, fallopia convolvulus, geranium pusillum, matricaria chamomilla, myosotis arvensis, ornithopus perpusillus, papaver dubium, polygonum aviculare, rumex acetosella, viola arvensis