verbascum densiflorum, carduus acanthoides, erigeron canadensis, arenaria serpyllifolia, echium vulgare, poa compressa, achillea millefolium, artemisia vulgaris, bromus hordeaceus, bromus tectorum, capsella bursa-pastoris, chaenorhinum minus, chenopodium album, cirsium arvense, convolvulus arvensis, crepis foetida, daucus carota, elymus repens, erysimum marschallianum, lactuca serriola, medicago lupulina, oenothera biennis, plantago major, poa annua, reseda lutea, rumex crispus, senecio viscosus, stellaria media, tripleurospermum inodorum