tussilago farfara, cirsium arvense, achillea millefolium, artemisia vulgaris, capsella bursa-pastoris, carduus acanthoides, elymus repens, poa compressa, urtica dioica, amaranthus retroflexus, arctium lappa, atriplex tatarica, ballota nigra, berteroa incana, bromus tectorum, chenopodium album, cirsium vulgare, convolvulus arvensis, daucus carota, echium vulgare, erigeron canadensis, euphorbia exigua, euphorbia peplus, festuca rubra, lactuca serriola, lolium perenne, melilotus albus, melilotus officinalis, picris hieracioides, plantago major, poa annua, reseda lutea, saponaria officinalis, silene latifolia, solanum nigrum, sonchus asper, trifolium pratense, tripleurospermum inodorum