thlaspi arvense, capsella bursa-pastoris, elymus repens, fallopia convolvulus, persicaria lapathifolia, polygonum aviculare, apera spica-venti, lepidium ruderale, rumex crispus, tripleurospermum inodorum, ballota nigra, chaenorhinum minus, chenopodium album, descurainia sophia, echium vulgare, erysimum cheiranthoides, lactuca serriola, poa annua, trifolium repens, tussilago farfara, dysphania botrys