ambrosia artemisiifolia, bassia scoparia, bromus japonicus, bromus tectorum, capsella bursa-pastoris, cirsium arvense, cirsium vulgare, crepis foetida, elymus repens, erigeron annuus, erigeron canadensis, hordeum murinum, linaria vulgaris, poa pratensis, reseda lutea, tripleurospermum inodorum, viola arvensis