epilobium brachycarpum, epilobium tetragonum, trifolium arvense, erigeron canadensis, medicago lupulina, agrostis capillaris, apera spica-venti, bromus tectorum, cirsium vulgare, crepis capillaris, daucus carota, filago arvensis, hypochaeris radicata, medicago minima, senecio viscosus, trifolium repens, cerastium holosteoides, lactuca serriola, salix purpurea, sonchus asper, tripleurospermum inodorum, tussilago farfara