lepidium draba, artemisia absinthium, descurainia sophia, pilosella officinarum, artemisia vulgaris, ballota nigra, berteroa incana, bromus hordeaceus, capsella bursa-pastoris, convolvulus arvensis, elymus repens, equisetum arvense, erigeron canadensis, linaria vulgaris, lolium perenne, medicago lupulina, melilotus officinalis, plantago lanceolata, poa pratensis, sisymbrium officinale, streblotrichum convolutum