cirsium arvense, lepidium draba, sorghum halepense, convolvulus arvensis, elymus repens, picris hieracioides, carduus acanthoides, erigeron canadensis, lactuca serriola, arenaria serpyllifolia, artemisia vulgaris, brassica nigra, capsella bursa-pastoris, erigeron annuus, galium aparine, lactuca viminea, lamium purpureum, medicago lupulina, mummenhoffia alliacea, reseda lutea, rumex crispus, senecio vernalis, sonchus asper, sonchus oleraceus, stellaria media, tragopogon dubius, vicia sativa